The Number

42987

Forty-Two Thousand Nine Hundred and Eighty-Seven

In Base 11 Undecimal Is

2a32a11

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

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

Nearby Numbers

Positive, nonzero integers within three units

42984
2a32711
Forty-Two Thousand Nine Hundred and Eighty-Four in Base 11 Undecimal
42985
2a32811
Forty-Two Thousand Nine Hundred and Eighty-Five in Base 11 Undecimal
42986
2a32911
Forty-Two Thousand Nine Hundred and Eighty-Six in Base 11 Undecimal
42988
2a33011
Forty-Two Thousand Nine Hundred and Eighty-Eight in Base 11 Undecimal
42989
2a33111
Forty-Two Thousand Nine Hundred and Eighty-Nine in Base 11 Undecimal
42990
2a33211
Forty-Two Thousand Nine Hundred and Ninety in Base 11 Undecimal

Scientific Notation

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

4.2987e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000038236637947575611

The reciprocal of 42987 in Base 11 Undecimal.

Palindrome?

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

The number 2a32a11 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 eighty-seven 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 eighty-seven 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 eighty-seven has the following 4 prime factors:

3
311
Three in Base 11 Undecimal
7
711
Seven in Base 11 Undecimal
23
2111
Twenty-Three 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

3111 · 7111 · 21111 · 81111 = 2a32a11

Base Conversions

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