The Number

21528

Twenty-One Thousand Five Hundred and Twenty-Eight

In Base 7 Septenary Is

1165237

The numbers with a 7 subscript use Base 7 Septenary notation.

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

Nearby Numbers

Positive, nonzero integers within three units

21525
1165207
Twenty-One Thousand Five Hundred and Twenty-Five in Base 7 Septenary
21526
1165217
Twenty-One Thousand Five Hundred and Twenty-Six in Base 7 Septenary
21527
1165227
Twenty-One Thousand Five Hundred and Twenty-Seven in Base 7 Septenary
21529
1165247
Twenty-One Thousand Five Hundred and Twenty-Nine in Base 7 Septenary
21530
1165257
Twenty-One Thousand Five Hundred and Thirty in Base 7 Septenary
21531
1165267
Twenty-One Thousand Five Hundred and Thirty-One in Base 7 Septenary

Scientific Notation

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

2.1528e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0000053153203230262434367

The reciprocal of 21528 in Base 7 Septenary.

Palindrome?

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

The number 1165237 is not a palindrome.

Not A Prime Number

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

Twenty-one thousand five hundred and twenty-eight is a composite number with 48 total factors (including 1 and itself).   See primes in Base 7 Septenary

A Composite

Composites have more than just these two factors.

Twenty-one thousand five hundred and twenty-eight is a composite number with 48 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 five hundred and twenty-eight has the following 4 prime factors:

2
27
Two in Base 7 Septenary
3
37
Three in Base 7 Septenary
13
167
Thirteen in Base 7 Septenary
23
327
Twenty-Three in Base 7 Septenary

Prime Factorization

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

273 · 372 · 1671 · 3271 = 1165237

Base Conversions

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