The Number

402842

Four Hundred and Two Thousand Eight Hundred and Forty-Two

In Base 21 Unovigesimal Is

21a9k21

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

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

Nearby Numbers

Positive, nonzero integers within three units

402839
21a9h21
Four Hundred and Two Thousand Eight Hundred and Thirty-Nine in Base 21 Unovigesimal
402840
21a9i21
Four Hundred and Two Thousand Eight Hundred and Forty in Base 21 Unovigesimal
402841
21a9j21
Four Hundred and Two Thousand Eight Hundred and Forty-One in Base 21 Unovigesimal
402843
21aa021
Four Hundred and Two Thousand Eight Hundred and Forty-Three in Base 21 Unovigesimal
402844
21aa121
Four Hundred and Two Thousand Eight Hundred and Forty-Four in Base 21 Unovigesimal
402845
21aa221
Four Hundred and Two Thousand Eight Hundred and Forty-Five in Base 21 Unovigesimal

Scientific Notation

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

4.02842e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000a2ik15567dk0c21

The reciprocal of 402842 in Base 21 Unovigesimal.

Palindrome?

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

The number 21a9k21 is not a palindrome.

Not A Prime Number

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

Four hundred and two thousand eight hundred and forty-two is a composite number with 8 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Four hundred and two thousand eight hundred and forty-two is a composite number with 8 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 four hundred and two thousand eight hundred and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
11
b21
Eleven in Base 21 Unovigesimal
18311
1kak21
Eightteen Thousand Three Hundred and Eleven in Base 21 Unovigesimal

Prime Factorization

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

2211 · b211 · 1kak211 = 21a9k21

Base Conversions

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