The Number

31239

Thirty-One Thousand Two Hundred and Thirty-Nine

In Base 11 Undecimal Is

2151a11

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

31236
2151711
Thirty-One Thousand Two Hundred and Thirty-Six in Base 11 Undecimal
31237
2151811
Thirty-One Thousand Two Hundred and Thirty-Seven in Base 11 Undecimal
31238
2151911
Thirty-One Thousand Two Hundred and Thirty-Eight in Base 11 Undecimal
31240
2152011
Thirty-One Thousand Two Hundred and Forty in Base 11 Undecimal
31241
2152111
Thirty-One Thousand Two Hundred and Forty-One in Base 11 Undecimal
31242
2152211
Thirty-One Thousand Two Hundred and Forty-Two in Base 11 Undecimal

Scientific Notation

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

3.1239e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000517899938400019511

The reciprocal of 31239 in Base 11 Undecimal.

Palindrome?

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

The number 2151a11 is not a palindrome.

Not A Prime Number

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

Thirty-one thousand two hundred and thirty-nine is a composite number with 16 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Thirty-one thousand two hundred and thirty-nine is a composite number with 16 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 thirty-one thousand two hundred and thirty-nine has the following 3 prime factors:

3
311
Three in Base 11 Undecimal
13
1211
Thirteen in Base 11 Undecimal
89
8111
Eighty-Nine in Base 11 Undecimal

Prime Factorization

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

3113 · 12111 · 81111 = 2151a11

Base Conversions

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