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870612138223480 = 235713061100148177
BaseRepresentation
bin1100010111110100010010111…
…1001111000110011101111000
311020011120201002211012200220001
43011331010233033012131320
51403103102124341122410
612323345410032042344
7351244436250363502
oct30575045717063570
94204521084180801
10870612138223480
11232449597240964
128178a56b6933b4
132b4a34ac0cc053
14114dbbd0abad72
156a9b94654633a
hex317d12f3c6778

870612138223480 has 64 divisors (see below), whose sum is σ = 1987116112313280. Its totient is φ = 343227828787200.

The previous prime is 870612138223403. The next prime is 870612138223489. The reversal of 870612138223480 is 84322831216078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870612138223489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41380849 + ... + 58767328.

It is an arithmetic number, because the mean of its divisors is an integer number (31048689254895).

Almost surely, 2870612138223480 is an apocalyptic number.

It is an amenable number.

870612138223480 is an abundant number, since it is smaller than the sum of its proper divisors (1116503974089800).

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

870612138223480 is a wasteful number, since it uses less digits than its factorization.

870612138223480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100151320 (or 100151316 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 870612138223480 in words is "eight hundred seventy trillion, six hundred twelve billion, one hundred thirty-eight million, two hundred twenty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 3061 6122 12244 15305 24488 30610 61220 122440 217331 434662 869324 1086655 1738648 2173310 4346620 8693240 100148177 200296354 400592708 500740885 801185416 1001481770 2002963540 4005927080 7110520567 14221041134 28442082268 35552602835 56884164536 71105205670 142210411340 284420822680 306553569797 613107139594 1226214279188 1532767848985 2452428558376 3065535697970 6131071395940 12262142791880 21765303455587 43530606911174 87061213822348 108826517277935 174122427644696 217653034555870 435306069111740 870612138223480