The Number

242820

Two Hundred and Forty-Two Thousand Eight Hundred and Twenty

In Base 21 Unovigesimal Is

154ci21

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Two Hundred and Forty-Two Thousand Eight Hundred and Twenty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

242817
154cf21
Two Hundred and Forty-Two Thousand Eight Hundred and Seventeen in Base 21 Unovigesimal
242818
154cg21
Two Hundred and Forty-Two Thousand Eight Hundred and Eightteen in Base 21 Unovigesimal
242819
154ch21
Two Hundred and Forty-Two Thousand Eight Hundred and Nineteen in Base 21 Unovigesimal
242821
154cj21
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty-One in Base 21 Unovigesimal
242822
154ck21
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty-Two in Base 21 Unovigesimal
242823
154d021
Two Hundred and Forty-Two Thousand Eight Hundred and Twenty-Three in Base 21 Unovigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.42820e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000gh4803fcej0121

The reciprocal of 242820 in Base 21 Unovigesimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 154ci21 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Two hundred and forty-two thousand eight hundred and twenty is a composite number with 72 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Two hundred and forty-two thousand eight hundred and twenty is a composite number with 72 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number two hundred and forty-two thousand eight hundred and twenty has the following 5 prime factors:

2
221
Two in Base 21 Unovigesimal
3
321
Three in Base 21 Unovigesimal
5
521
Five in Base 21 Unovigesimal
19
j21
Nineteen in Base 21 Unovigesimal
71
3821
Seventy-One in Base 21 Unovigesimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2212 · 3212 · 5211 · j211 · 38211 = 154ci21

Base Conversions

The number two hundred and forty-two thousand eight hundred and twenty in 35 different bases