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86700960 = 2532560209
BaseRepresentation
bin1010010101011…
…11001110100000
320001010212100200
411022233032200
5134143412320
612334145200
72101642323
oct512571640
9201125320
1086700960
1144a38795
1225052200
1314c68458
14b72c7ba
157929290
hex52af3a0

86700960 has 72 divisors (see below), whose sum is σ = 295871940. Its totient is φ = 23119872.

The previous prime is 86700959. The next prime is 86700973. The reversal of 86700960 is 6900768.

It can be written as a sum of positive squares in 2 ways, for example, as 69956496 + 16744464 = 8364^2 + 4092^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28665 + ... + 31544.

Almost surely, 286700960 is an apocalyptic number.

86700960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86700960 is an abundant number, since it is smaller than the sum of its proper divisors (209170980).

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

86700960 is a wasteful number, since it uses less digits than its factorization.

86700960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60230 (or 60219 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 86700960 is about 9311.3350278035. The cubic root of 86700960 is about 442.5964933683.

The spelling of 86700960 in words is "eighty-six million, seven hundred thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 60209 120418 180627 240836 301045 361254 481672 541881 602090 722508 903135 963344 1083762 1204180 1445016 1806270 1926688 2167524 2408360 2709405 2890032 3612540 4335048 4816720 5418810 5780064 7225080 8670096 9633440 10837620 14450160 17340192 21675240 28900320 43350480 86700960