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85237572 = 22371953407
BaseRepresentation
bin1010001010010…
…01111101000100
312221101111222010
411011021331010
5133310100242
612242534220
72053336020
oct505117504
9187344863
1085237572
1144129282
1224667370
1314875344
14b46b380
15773a89c
hex5149f44

85237572 has 48 divisors (see below), whose sum is σ = 239267840. Its totient is φ = 23071392.

The previous prime is 85237561. The next prime is 85237613. The reversal of 85237572 is 27573258.

It is a self number, because there is not a number n which added to its sum of digits gives 85237572.

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, 25108 + ... + 28299.

Almost surely, 285237572 is an apocalyptic number.

It is an amenable number.

85237572 is an abundant number, since it is smaller than the sum of its proper divisors (154030268).

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

85237572 is a wasteful number, since it uses less digits than its factorization.

85237572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53440 (or 53438 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 85237572 is about 9232.4196178467. The cubic root of 85237572 is about 440.0922189626.

The spelling of 85237572 in words is "eighty-five million, two hundred thirty-seven thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 228 266 399 532 798 1596 53407 106814 160221 213628 320442 373849 640884 747698 1014733 1121547 1495396 2029466 2243094 3044199 4058932 4486188 6088398 7103131 12176796 14206262 21309393 28412524 42618786 85237572