The Number

21261

Twenty-One Thousand Two Hundred and Sixty-One

In Base 18 Octodecimal Is

3bb318

The numbers with a 18 subscript use Base 18 Octodecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21258
3bb018
Twenty-One Thousand Two Hundred and Fifty-Eight in Base 18 Octodecimal
21259
3bb118
Twenty-One Thousand Two Hundred and Fifty-Nine in Base 18 Octodecimal
21260
3bb218
Twenty-One Thousand Two Hundred and Sixty in Base 18 Octodecimal
21262
3bb418
Twenty-One Thousand Two Hundred and Sixty-Two in Base 18 Octodecimal
21263
3bb518
Twenty-One Thousand Two Hundred and Sixty-Three in Base 18 Octodecimal
21264
3bb618
Twenty-One Thousand Two Hundred and Sixty-Four in Base 18 Octodecimal

Scientific Notation

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

2.1261e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0004gfd8160f68hf18

The reciprocal of 21261 in Base 18 Octodecimal.

Palindrome?

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

The number 3bb318 is a palindrome.

Not A Prime Number

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

Twenty-one thousand two hundred and sixty-one is a composite number with 8 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty-one thousand two hundred and sixty-one is a composite number with 8 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 twenty-one thousand two hundred and sixty-one has the following 3 prime factors:

3
318
Three in Base 18 Octodecimal
19
1118
Nineteen in Base 18 Octodecimal
373
12d18
Three Hundred and Seventy-Three in Base 18 Octodecimal

Prime Factorization

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

3181 · 11181 · 12d181 = 3bb318

Base Conversions

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