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813125083 = 19239241743
BaseRepresentation
bin110000011101110…
…100110111011011
32002200001000220211
4300131310313123
53131130000313
6212404031551
726102310031
oct6035646733
92080030824
10813125083
11387a95a01
121a83925b7
13cc5ca004
1479dc4551
154b5bae3d
hex30774ddb

813125083 has 16 divisors (see below), whose sum is σ = 864230400. Its totient is φ = 762894720.

The previous prime is 813125077. The next prime is 813125087. The reversal of 813125083 is 380521318.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-813125083 is a prime.

It is a super-2 number, since 2×8131250832 = 1322344801207513778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813125087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1094010 + ... + 1094752.

It is an arithmetic number, because the mean of its divisors is an integer number (54014400).

Almost surely, 2813125083 is an apocalyptic number.

813125083 is a deficient number, since it is larger than the sum of its proper divisors (51105317).

813125083 is a wasteful number, since it uses less digits than its factorization.

813125083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 813125083 is about 28515.3482005744. The cubic root of 813125083 is about 933.3670231745.

The spelling of 813125083 in words is "eight hundred thirteen million, one hundred twenty-five thousand, eighty-three".

Divisors: 1 19 239 241 743 4541 4579 14117 57599 177577 179063 1094381 3373963 3402197 42796057 813125083