Nearby Numbers

Positive, nonzero integers within three units

21019

Twenty-One Thousand and Nineteen

21020

Twenty-One Thousand and Twenty

21021

Twenty-One Thousand and Twenty-One

21023

Twenty-One Thousand and Twenty-Three

21024

Twenty-One Thousand and Twenty-Four

21025

Twenty-One Thousand and Twenty-Five

Scientific Notation

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

2.1022e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004756921320521359

The reciprocal of 21022.

Palindrome?

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

The number 21022 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 twenty-two is a composite number with 8 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 twenty-two is a composite number with 8 total factors (including 1 and itself).

Prime Factors

2

Two

23

Twenty-Three

457

Four Hundred and Fifty-Seven

Prime Factorization

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

21 · 231 · 4571 = 21022

Base Conversions

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