The Number

72121

Seventy-Two Thousand One Hundred and Twenty-One

In Base 8 Octal Is

2146718

The numbers with a 8 subscript use Base 8 Octal 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
2146668
Seventy-Two Thousand One Hundred and Eightteen in Base 8 Octal
72119
2146678
Seventy-Two Thousand One Hundred and Nineteen in Base 8 Octal
72120
2146708
Seventy-Two Thousand One Hundred and Twenty in Base 8 Octal
72122
2146728
Seventy-Two Thousand One Hundred and Twenty-Two in Base 8 Octal
72123
2146738
Seventy-Two Thousand One Hundred and Twenty-Three in Base 8 Octal
72124
2146748
Seventy-Two Thousand One Hundred and Twenty-Four in Base 8 Octal

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.

0.000003505003704163114118

The reciprocal of 72121 in Base 8 Octal.

Palindrome?

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

The number 2146718 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 8 Octal

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
78
Seven in Base 8 Octal
10303
240778
Ten Thousand Three Hundred and Three in Base 8 Octal

Prime Factorization

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

781 · 2407781 = 2146718

Base Conversions

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