The Number

72121

Seventy-Two Thousand One Hundred and Twenty-One

In Base 11 Undecimal Is

4a20511

The numbers with a 11 subscript use Base 11 Undecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

72118
4a20211
Seventy-Two Thousand One Hundred and Eightteen in Base 11 Undecimal
72119
4a20311
Seventy-Two Thousand One Hundred and Nineteen in Base 11 Undecimal
72120
4a20411
Seventy-Two Thousand One Hundred and Twenty in Base 11 Undecimal
72122
4a20611
Seventy-Two Thousand One Hundred and Twenty-Two in Base 11 Undecimal
72123
4a20711
Seventy-Two Thousand One Hundred and Twenty-Three in Base 11 Undecimal
72124
4a20811
Seventy-Two Thousand One Hundred and Twenty-Four in Base 11 Undecimal

Scientific Notation

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

7.2121e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000226223687770723811

The reciprocal of 72121 in Base 11 Undecimal.

Palindrome?

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

The number 4a20511 is not a palindrome.

Not A Prime Number

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

Seventy-two thousand one hundred and twenty-one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 11 Undecimal

A Composite

Composites have more than just these two factors.

Seventy-two thousand one hundred and twenty-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 seventy-two thousand one hundred and twenty-one has the following 2 prime factors:

7
711
Seven in Base 11 Undecimal
10303
781711
Ten Thousand Three Hundred and Three in Base 11 Undecimal

Prime Factorization

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

7111 · 7817111 = 4a20511

Base Conversions

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