The Number

2145

Two Thousand One Hundred and Forty-Five

In Base 31 Untrigesimal Is

27631

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

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

Nearby Numbers

Positive, nonzero integers within three units

2142
27331
Two Thousand One Hundred and Forty-Two in Base 31 Untrigesimal
2143
27431
Two Thousand One Hundred and Forty-Three in Base 31 Untrigesimal
2144
27531
Two Thousand One Hundred and Forty-Four in Base 31 Untrigesimal
2146
27731
Two Thousand One Hundred and Forty-Six in Base 31 Untrigesimal
2147
27831
Two Thousand One Hundred and Forty-Seven in Base 31 Untrigesimal
2148
27931
Two Thousand One Hundred and Forty-Eight in Base 31 Untrigesimal

Scientific Notation

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

2.145e3

Reciprocal

A number multiplied with its reciprocal is one.

0.00drgsjg8egls31

The reciprocal of 2145 in Base 31 Untrigesimal.

Palindrome?

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

The number 27631 is not a palindrome.

Not A Prime Number

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

Two thousand one hundred and forty-five is a composite number with 16 total factors (including 1 and itself).   See primes in Base 31 Untrigesimal

A Composite

Composites have more than just these two factors.

Two thousand one hundred and forty-five 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 two thousand one hundred and forty-five has the following 4 prime factors:

3
331
Three in Base 31 Untrigesimal
5
531
Five in Base 31 Untrigesimal
11
b31
Eleven in Base 31 Untrigesimal
13
d31
Thirteen in Base 31 Untrigesimal

Prime Factorization

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

3311 · 5311 · b311 · d311 = 27631

Base Conversions

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