Nearby Numbers

Positive, nonzero integers within three units

21014

Twenty-One Thousand and Fourteen

21015

Twenty-One Thousand and Fifteen

21016

Twenty-One Thousand and Sixteen

21018

Twenty-One Thousand and Eightteen

21019

Twenty-One Thousand and Nineteen

21020

Twenty-One Thousand and Twenty

Scientific Notation

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

2.1017e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00004758053004710473

The reciprocal of 21017.

Palindrome?

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

The number 21017 is not a palindrome.

A Prime Number

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

Twenty-one thousand and seventeen is the 2364th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

Twenty-One Thousand and Seventeen is not a composite number because it has exactly two factors: One and Twenty-One Thousand and Seventeen

Prime Factors

21017

Twenty-One Thousand and Seventeen

Prime Factorization

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

210171 = 21017

Base Conversions

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