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85531307575 = 527488750329
BaseRepresentation
bin100111110101000010…
…0000010111000110111
322011202211020121112111
41033222010002320313
52400132003320300
6103143104431451
76115355055520
oct1175204027067
9264684217474
1085531307575
113330121435a
12146b0318587
1380b108a98c
1441d5621847
152358dc49ba
hex13ea102e37

85531307575 has 12 divisors (see below), whose sum is σ = 121210081840. Its totient is φ = 58650039360.

The previous prime is 85531307509. The next prime is 85531307593. The reversal of 85531307575 is 57570313558.

It is not a de Polignac number, because 85531307575 - 213 = 85531299383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244374990 + ... + 244375339.

Almost surely, 285531307575 is an apocalyptic number.

85531307575 is a deficient number, since it is larger than the sum of its proper divisors (35678774265).

85531307575 is a wasteful number, since it uses less digits than its factorization.

85531307575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488750346 (or 488750341 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 85531307575 in words is "eighty-five billion, five hundred thirty-one million, three hundred seven thousand, five hundred seventy-five".

Divisors: 1 5 7 25 35 175 488750329 2443751645 3421252303 12218758225 17106261515 85531307575