Nearby Numbers

Positive, nonzero integers within three units

21013

Twenty-One Thousand and Thirteen

21014

Twenty-One Thousand and Fourteen

21015

Twenty-One Thousand and Fifteen

21017

Twenty-One Thousand and Seventeen

21018

Twenty-One Thousand and Eightteen

21019

Twenty-One Thousand and Nineteen

Scientific Notation

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

2.1016e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000047582794061667303

The reciprocal of 21016.

Palindrome?

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

The number 21016 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 and sixteen 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.

Twenty-one thousand and sixteen is a composite number with 16 total factors (including 1 and itself).

Prime Factors

2

Two

37

Thirty-Seven

71

Seventy-One

Prime Factorization

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

23 · 371 · 711 = 21016

Base Conversions

The number twenty-one thousand and sixteen in 35 different bases