The Number

21947

Twenty-One Thousand Nine Hundred and Forty-Seven

In Base 31 Untrigesimal Is

mpu31

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21944
mpr31
Twenty-One Thousand Nine Hundred and Forty-Four in Base 31 Untrigesimal
21945
mps31
Twenty-One Thousand Nine Hundred and Forty-Five in Base 31 Untrigesimal
21946
mpt31
Twenty-One Thousand Nine Hundred and Forty-Six in Base 31 Untrigesimal
21948
mq031
Twenty-One Thousand Nine Hundred and Forty-Eight in Base 31 Untrigesimal
21949
mq131
Twenty-One Thousand Nine Hundred and Forty-Nine in Base 31 Untrigesimal
21950
mq231
Twenty-One Thousand Nine Hundred and Fifty in Base 31 Untrigesimal

Scientific Notation

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

2.1947e4

Reciprocal

A number multiplied with its reciprocal is one.

0.001b2efc1t7og931

The reciprocal of 21947 in Base 31 Untrigesimal.

Palindrome?

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

The number mpu31 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-seven is a composite number with 4 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand nine hundred and forty-seven is a composite number with 4 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-seven has the following 2 prime factors:

17
h31
Seventeen in Base 31 Untrigesimal
1291
1ak31
One Thousand Two Hundred and Ninety-One in Base 31 Untrigesimal

Prime Factorization

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

h311 · 1ak311 = mpu31

Base Conversions

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