The Number

42945

Forty-Two Thousand Nine Hundred and Forty-Five

In Base 11 Undecimal Is

2a2a111

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

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

Nearby Numbers

Positive, nonzero integers within three units

42942
2a29911
Forty-Two Thousand Nine Hundred and Forty-Two in Base 11 Undecimal
42943
2a29a11
Forty-Two Thousand Nine Hundred and Forty-Three in Base 11 Undecimal
42944
2a2a011
Forty-Two Thousand Nine Hundred and Forty-Four in Base 11 Undecimal
42946
2a2a211
Forty-Two Thousand Nine Hundred and Forty-Six in Base 11 Undecimal
42947
2a2a311
Forty-Two Thousand Nine Hundred and Forty-Seven in Base 11 Undecimal
42948
2a2a411
Forty-Two Thousand Nine Hundred and Forty-Eight in Base 11 Undecimal

Scientific Notation

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

4.2945e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000382852490a3a269211

The reciprocal of 42945 in Base 11 Undecimal.

Palindrome?

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

The number 2a2a111 is not a palindrome.

Not A Prime Number

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

Forty-two thousand nine hundred and forty-five 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.

Forty-two thousand nine 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 forty-two thousand nine hundred and forty-five has the following 4 prime factors:

3
311
Three in Base 11 Undecimal
5
511
Five in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
409
34211
Four Hundred and 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

3111 · 5111 · 7111 · 342111 = 2a2a111

Base Conversions

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