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85275860 = 22547831093
BaseRepresentation
bin1010001010100…
…11010011010100
312221110110111012
411011103103110
5133312311420
612243431352
72053555445
oct505232324
9187413435
1085275860
114415501a
1224685558
13148898b7
14b47b2cc
157746dc5
hex51534d4

85275860 has 48 divisors (see below), whose sum is σ = 185262336. Its totient is φ = 32952192.

The previous prime is 85275821. The next prime is 85275871. The reversal of 85275860 is 6857258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77474 + ... + 78566.

It is an arithmetic number, because the mean of its divisors is an integer number (3859632).

Almost surely, 285275860 is an apocalyptic number.

It is an amenable number.

85275860 is an abundant number, since it is smaller than the sum of its proper divisors (99986476).

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

85275860 is a wasteful number, since it uses less digits than its factorization.

85275860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 85275860 is about 9234.4929476393. The cubic root of 85275860 is about 440.1581043389.

The spelling of 85275860 in words is "eighty-five million, two hundred seventy-five thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 47 83 94 166 188 235 332 415 470 830 940 1093 1660 2186 3901 4372 5465 7802 10930 15604 19505 21860 39010 51371 78020 90719 102742 181438 205484 256855 362876 453595 513710 907190 1027420 1814380 4263793 8527586 17055172 21318965 42637930 85275860