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86664680 = 2355873691
BaseRepresentation
bin1010010101001…
…10010111101000
320001002000120222
411022212113220
5134141232210
612333305212
72101431464
oct512462750
9201060528
1086664680
1144a13503
1225035208
1314c54a9b
14b71d4a4
15791d655
hex52a65e8

86664680 has 32 divisors (see below), whose sum is σ = 195380640. Its totient is φ = 34597440.

The previous prime is 86664671. The next prime is 86664707. The reversal of 86664680 is 8646668.

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 7 ways as a sum of consecutive naturals, for example, 21635 + ... + 25325.

It is an arithmetic number, because the mean of its divisors is an integer number (6105645).

Almost surely, 286664680 is an apocalyptic number.

It is an amenable number.

86664680 is an abundant number, since it is smaller than the sum of its proper divisors (108715960).

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

86664680 is a wasteful number, since it uses less digits than its factorization.

86664680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289 (or 4285 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 86664680 is about 9309.3866607849. The cubic root of 86664680 is about 442.5347499495.

The spelling of 86664680 in words is "eighty-six million, six hundred sixty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 587 1174 2348 2935 3691 4696 5870 7382 11740 14764 18455 23480 29528 36910 73820 147640 2166617 4333234 8666468 10833085 17332936 21666170 43332340 86664680