The Number

21942

Twenty-One Thousand Nine Hundred and Forty-Two

In Base 15 Quindecimal Is

677c15

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21939
677915
Twenty-One Thousand Nine Hundred and Thirty-Nine in Base 15 Quindecimal
21940
677a15
Twenty-One Thousand Nine Hundred and Forty in Base 15 Quindecimal
21941
677b15
Twenty-One Thousand Nine Hundred and Forty-One in Base 15 Quindecimal
21943
677d15
Twenty-One Thousand Nine Hundred and Forty-Three in Base 15 Quindecimal
21944
677e15
Twenty-One Thousand Nine Hundred and Forty-Four in Base 15 Quindecimal
21945
678015
Twenty-One Thousand Nine Hundred and Forty-Five in Base 15 Quindecimal

Scientific Notation

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

2.1942e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0002491ce6bbdb6b3615

The reciprocal of 21942 in Base 15 Quindecimal.

Palindrome?

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

The number 677c15 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand nine hundred and forty-two is a composite number with 24 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and forty-two is a composite number with 24 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 twenty-one thousand nine hundred and forty-two has the following 4 prime factors:

2
215
Two in Base 15 Quindecimal
3
315
Three in Base 15 Quindecimal
23
1815
Twenty-Three in Base 15 Quindecimal
53
3815
Fifty-Three in Base 15 Quindecimal

Prime Factorization

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

2151 · 3152 · 18151 · 38151 = 677c15

Base Conversions

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