The Number

121665

One Hundred and Twenty-One Thousand Six Hundred and Sixty-Five

In Base 15 Quindecimal Is

260b015

The numbers with a 15 subscript use Base 15 Quindecimal notation.

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

Nearby Numbers

Positive, nonzero integers within three units

121662
260ac15
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Two in Base 15 Quindecimal
121663
260ad15
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Three in Base 15 Quindecimal
121664
260ae15
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Four in Base 15 Quindecimal
121666
260b115
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Six in Base 15 Quindecimal
121667
260b215
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Seven in Base 15 Quindecimal
121668
260b315
One Hundred and Twenty-One Thousand Six Hundred and Sixty-Eight in Base 15 Quindecimal

Scientific Notation

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

1.21665e5

Reciprocal

A number multiplied with its reciprocal is one.

0.00006395222a27ad715

The reciprocal of 121665 in Base 15 Quindecimal.

Palindrome?

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

The number 260b015 is not a palindrome.

Not A Prime Number

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

One hundred and twenty-one thousand six hundred and sixty-five is a composite number with 8 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

One hundred and twenty-one thousand six hundred and sixty-five 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 one hundred and twenty-one thousand six hundred and sixty-five has the following 3 prime factors:

3
315
Three in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
8111
260b15
Eight Thousand One Hundred and Eleven in Base 15 Quindecimal

Prime Factorization

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

3151 · 5151 · 260b151 = 260b015

Base Conversions

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