The Number

280

Two Hundred and Eighty

In Base 15 Quindecimal Is

13a15

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

For more familiar numbers: See Two Hundred and Eighty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

277
13715
Two Hundred and Seventy-Seven in Base 15 Quindecimal
278
13815
Two Hundred and Seventy-Eight in Base 15 Quindecimal
279
13915
Two Hundred and Seventy-Nine in Base 15 Quindecimal
281
13b15
Two Hundred and Eighty-One in Base 15 Quindecimal
282
13c15
Two Hundred and Eighty-Two in Base 15 Quindecimal
283
13d15
Two Hundred and Eighty-Three in Base 15 Quindecimal

Scientific Notation

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

2.80e2

Reciprocal

A number multiplied with its reciprocal is one.

0.00c0c0c0c0c0c0bd15

The reciprocal of 280 in Base 15 Quindecimal.

Palindrome?

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

The number 13a15 is not a palindrome.

Not A Prime Number

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

Two hundred and eighty is a composite number with 16 total factors (including 1 and itself).   See primes in Base 15 Quindecimal

A Composite

Composites have more than just these two factors.

Two hundred and eighty is a composite number with 16 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 two hundred and eighty has the following 3 prime factors:

2
215
Two in Base 15 Quindecimal
5
515
Five in Base 15 Quindecimal
7
715
Seven in Base 15 Quindecimal

Prime Factorization

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

2153 · 5151 · 7151 = 13a15

Base Conversions

The number two hundred and eighty in 35 different bases