The Number

21501

Twenty-One Thousand Five Hundred and One

In Base 7 Septenary Is

1164547

The numbers with a 7 subscript use Base 7 Septenary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21498
1164517
Twenty-One Thousand Four Hundred and Ninety-Eight in Base 7 Septenary
21499
1164527
Twenty-One Thousand Four Hundred and Ninety-Nine in Base 7 Septenary
21500
1164537
Twenty-One Thousand Five Hundred in Base 7 Septenary
21502
1164557
Twenty-One Thousand Five Hundred and Two in Base 7 Septenary
21503
1164567
Twenty-One Thousand Five Hundred and Three in Base 7 Septenary
21504
1164607
Twenty-One Thousand Five Hundred and Four in Base 7 Septenary

Scientific Notation

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

2.1501e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000053205526002260145327

The reciprocal of 21501 in Base 7 Septenary.

Palindrome?

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

The number 1164547 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand five hundred and one is a composite number with 6 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty-one thousand five hundred and one is a composite number with 6 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 twenty-one thousand five hundred and one has the following 2 prime factors:

3
37
Three in Base 7 Septenary
2389
66527
Two Thousand Three Hundred and Eighty-Nine in Base 7 Septenary

Prime Factorization

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

372 · 665271 = 1164547

Base Conversions

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