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85712571024 = 2431785678563
BaseRepresentation
bin100111111010011011…
…1100000101010010000
322012020110022202020120
41033310313200222100
52401014404233044
6103213101510240
76123015555423
oct1176467405220
9265213282216
1085712571024
113339456a263
1214740b72380
13810c7b4962
1442117279ba
152369c7c519
hex13f4de0a90

85712571024 has 20 divisors (see below), whose sum is σ = 221424141936. Its totient is φ = 28570856992.

The previous prime is 85712571011. The next prime is 85712571047. The reversal of 85712571024 is 42017521758.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892839234 + ... + 892839329.

Almost surely, 285712571024 is an apocalyptic number.

It is an amenable number.

85712571024 is an abundant number, since it is smaller than the sum of its proper divisors (135711570912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85712571024 is a wasteful number, since it uses less digits than its factorization.

85712571024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785678574 (or 1785678568 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 85712571024 in words is "eighty-five billion, seven hundred twelve million, five hundred seventy-one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 1785678563 3571357126 5357035689 7142714252 10714071378 14285428504 21428142756 28570857008 42856285512 85712571024