The Number

142991

One Hundred and Forty-Two Thousand Nine Hundred and Ninety-One

In Base 21 Unovigesimal Is

f95221

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

142988
f94k21
One Hundred and Forty-Two Thousand Nine Hundred and Eighty-Eight in Base 21 Unovigesimal
142989
f95021
One Hundred and Forty-Two Thousand Nine Hundred and Eighty-Nine in Base 21 Unovigesimal
142990
f95121
One Hundred and Forty-Two Thousand Nine Hundred and Ninety in Base 21 Unovigesimal
142992
f95321
One Hundred and Forty-Two Thousand Nine Hundred and Ninety-Two in Base 21 Unovigesimal
142993
f95421
One Hundred and Forty-Two Thousand Nine Hundred and Ninety-Three in Base 21 Unovigesimal
142994
f95521
One Hundred and Forty-Two Thousand Nine Hundred and Ninety-Four in Base 21 Unovigesimal

Scientific Notation

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

1.42991e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00017bgh3aj8153h21

The reciprocal of 142991 in Base 21 Unovigesimal.

Palindrome?

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

The number f95221 is not a palindrome.

Not A Prime Number

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

One hundred and forty-two thousand nine hundred and ninety-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

One hundred and forty-two thousand nine hundred and ninety-one is a composite number with 4 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 one hundred and forty-two thousand nine hundred and ninety-one has the following 2 prime factors:

23
1221
Twenty-Three in Base 21 Unovigesimal
6217
e2121
Six Thousand Two Hundred and Seventeen in Base 21 Unovigesimal

Prime Factorization

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

12211 · e21211 = f95221

Base Conversions

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