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870612140671648 = 25531493445185437
BaseRepresentation
bin1100010111110100010010111…
…1011000011100001010100000
311020011120201002222211002010221
43011331010233120130022200
51403103102131002443043
612323345410200332424
7351244436310241144
oct30575045730341240
94204521088732127
10870612140671648
11232449598663241
128178a570474114
132b4a34ac77847b
14114dbbd1157224
156a9b94687b8ed
hex317d12f61c2a0

870612140671648 has 48 divisors (see below), whose sum is σ = 1758078129011400. Its totient is φ = 424226353847296.

The previous prime is 870612140671487. The next prime is 870612140671657. The reversal of 870612140671648 is 846176041216078.

It can be written as a sum of positive squares in 4 ways, for example, as 838430709326224 + 32181431345424 = 28955668^2 + 5672868^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722340015 + ... + 1722845422.

Almost surely, 2870612140671648 is an apocalyptic number.

It is an amenable number.

870612140671648 is an abundant number, since it is smaller than the sum of its proper divisors (887465988339752).

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

870612140671648 is a wasteful number, since it uses less digits than its factorization.

870612140671648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445185649 (or 3445185641 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 870612140671648 in words is "eight hundred seventy trillion, six hundred twelve billion, one hundred forty million, six hundred seventy-one thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 32 53 106 149 212 298 424 596 848 1192 1696 2384 4768 7897 15794 31588 63176 126352 252704 3445185437 6890370874 13780741748 27561483496 55122966992 110245933984 182594828161 365189656322 513332630113 730379312644 1026665260226 1460758625288 2053330520452 2921517250576 4106661040904 5843034501152 8213322081808 16426644163616 27206629395989 54413258791978 108826517583956 217653035167912 435306070335824 870612140671648