The Number

42945

Forty-Two Thousand Nine Hundred and Forty-Five

Nearby Numbers

Positive, nonzero integers within three units

42942
Forty-Two Thousand Nine Hundred and Forty-Two
42943
Forty-Two Thousand Nine Hundred and Forty-Three
42944
Forty-Two Thousand Nine Hundred and Forty-Four
42946
Forty-Two Thousand Nine Hundred and Forty-Six
42947
Forty-Two Thousand Nine Hundred and Forty-Seven
42948
Forty-Two Thousand Nine Hundred and Forty-Eight

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.

0.000023285597857724998

The reciprocal of 42945.

Palindrome?

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

The number 42945 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 10 Decimal

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
Three
5
Five
7
Seven
409
Four Hundred and Nine

Prime Factorization

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

31 · 51 · 71 · 4091 = 42945

Base Conversions

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