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70881013285 = 572719499591
BaseRepresentation
bin100001000000011010…
…1100110111000100101
320202221211010112220021
41002000311212320211
52130131014411120
652321242035141
75056332446335
oct1020065467045
9222854115807
1070881013285
1128073536425
12118a1aa8ab1
1368b7b23ba4
143605a2d0c5
151c9cb3baaa
hex1080d66e25

70881013285 has 8 divisors (see below), whose sum is σ = 85174217856. Its totient is φ = 56626809360.

The previous prime is 70881013261. The next prime is 70881013297. The reversal of 70881013285 is 58231018807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70881013285 - 27 = 70881013157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9746161 + ... + 9753430.

It is an arithmetic number, because the mean of its divisors is an integer number (10646777232).

Almost surely, 270881013285 is an apocalyptic number.

It is an amenable number.

70881013285 is a deficient number, since it is larger than the sum of its proper divisors (14293204571).

70881013285 is a wasteful number, since it uses less digits than its factorization.

70881013285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500323.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 70881013285 in words is "seventy billion, eight hundred eighty-one million, thirteen thousand, two hundred eighty-five".

Divisors: 1 5 727 3635 19499591 97497955 14176202657 70881013285