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85345256 = 23971091009
BaseRepresentation
bin1010001011001…
…00001111101000
312221120222200102
411011210033220
5133322022011
612245124532
72054264663
oct505441750
9187528612
1085345256
11441a2177
12246b9748
13148b2369
14b4986da
15775c73b
hex51643e8

85345256 has 32 divisors (see below), whose sum is σ = 163317000. Its totient is φ = 41803776.

The previous prime is 85345243. The next prime is 85345261. The reversal of 85345256 is 65254358.

It can be written as a sum of positive squares in 4 ways, for example, as 71402500 + 13942756 = 8450^2 + 3734^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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, 84080 + ... + 85088.

Almost surely, 285345256 is an apocalyptic number.

It is an amenable number.

85345256 is a deficient number, since it is larger than the sum of its proper divisors (77971744).

85345256 is a wasteful number, since it uses less digits than its factorization.

85345256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1217 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 85345256 is about 9238.2496177577. The cubic root of 85345256 is about 440.2774696154.

The spelling of 85345256 in words is "eighty-five million, three hundred forty-five thousand, two hundred fifty-six".

Divisors: 1 2 4 8 97 109 194 218 388 436 776 872 1009 2018 4036 8072 10573 21146 42292 84584 97873 109981 195746 219962 391492 439924 782984 879848 10668157 21336314 42672628 85345256