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87680359 = 1341916097
BaseRepresentation
bin1010011100111…
…10010101100111
320002222121211201
411032132111213
5134421232414
612411143331
72113161604
oct516362547
9202877751
1087680359
1145547608
1225444b47
131521c190
14b9056ab
157a6e574
hex539e567

87680359 has 8 divisors (see below), whose sum is σ = 94656240. Its totient is φ = 80737536.

The previous prime is 87680357. The next prime is 87680371. The reversal of 87680359 is 95308678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87680359 - 21 = 87680357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87680357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2602 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (11832030).

Almost surely, 287680359 is an apocalyptic number.

87680359 is a deficient number, since it is larger than the sum of its proper divisors (6975881).

87680359 is a wasteful number, since it uses less digits than its factorization.

87680359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 87680359 is about 9363.7790982060. The cubic root of 87680359 is about 444.2568229158.

The spelling of 87680359 in words is "eighty-seven million, six hundred eighty thousand, three hundred fifty-nine".

Divisors: 1 13 419 5447 16097 209261 6744643 87680359