The Number

400042

Four Hundred Thousand and Forty-Two

In Base 21 Unovigesimal Is

2142d21

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

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

Nearby Numbers

Positive, nonzero integers within three units

400039
2142a21
Four Hundred Thousand and Thirty-Nine in Base 21 Unovigesimal
400040
2142b21
Four Hundred Thousand and Forty in Base 21 Unovigesimal
400041
2142c21
Four Hundred Thousand and Forty-One in Base 21 Unovigesimal
400043
2142e21
Four Hundred Thousand and Forty-Three in Base 21 Unovigesimal
400044
2142f21
Four Hundred Thousand and Forty-Four in Base 21 Unovigesimal
400045
2142g21
Four Hundred Thousand 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.

4.00042e5

Reciprocal

A number multiplied with its reciprocal is one.

0.0000a4854d939hd921

The reciprocal of 400042 in Base 21 Unovigesimal.

Palindrome?

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

The number 2142d21 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 thousand 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 thousand 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 thousand and forty-two has the following 3 prime factors:

2
221
Two in Base 21 Unovigesimal
139
6d21
One Hundred and Thirty-Nine in Base 21 Unovigesimal
1439
35b21
One Thousand Four Hundred and Thirty-Nine 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 · 6d211 · 35b211 = 2142d21

Base Conversions

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