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85457854580 = 22571932127013
BaseRepresentation
bin100111110010110101…
…1110110000001110100
322011120201000210222012
41033211223312001310
52400004202321310
6103131522223352
76113503531040
oct1174553660164
9264521023865
1085457854580
1133273804aaa
121468b7b4b58
13809bab0577
1441c9981020
152352715c05
hex13e5af6074

85457854580 has 48 divisors (see below), whose sum is σ = 215893534080. Its totient is φ = 27757738368.

The previous prime is 85457854579. The next prime is 85457854609. The reversal of 85457854580 is 8545875458.

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, 16060847 + ... + 16066166.

It is an arithmetic number, because the mean of its divisors is an integer number (4497781960).

Almost surely, 285457854580 is an apocalyptic number.

It is an amenable number.

85457854580 is an abundant number, since it is smaller than the sum of its proper divisors (130435679500).

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

85457854580 is a wasteful number, since it uses less digits than its factorization.

85457854580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32127048 (or 32127046 counting only the distinct ones).

The product of its (nonzero) digits is 35840000, while the sum is 59.

The spelling of 85457854580 in words is "eighty-five billion, four hundred fifty-seven million, eight hundred fifty-four thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 32127013 64254026 128508052 160635065 224889091 321270130 449778182 610413247 642540260 899556364 1124445455 1220826494 2248890910 2441652988 3052066235 4272892729 4497781820 6104132470 8545785458 12208264940 17091570916 21364463645 42728927290 85457854580