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87628692801 = 31312323182333
BaseRepresentation
bin101000110011100010…
…0111011110101000001
322101011222211211011210
41101213010323311001
52413430421132201
6104131151000333
76221343412326
oct1214704736501
9271158754153
1087628692801
1134188126981
1214b968090a9
138356771620
144353dcab4d
15242d0c21d6
hex146713bd41

87628692801 has 16 divisors (see below), whose sum is σ = 125836716096. Its totient is φ = 53920677696.

The previous prime is 87628692799. The next prime is 87628692857. The reversal of 87628692801 is 10829682678.

It is not a de Polignac number, because 87628692801 - 21 = 87628692799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87628692871) 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, 389431 + ... + 571763.

It is an arithmetic number, because the mean of its divisors is an integer number (7864794756).

Almost surely, 287628692801 is an apocalyptic number.

It is an amenable number.

87628692801 is a deficient number, since it is larger than the sum of its proper divisors (38208023295).

87628692801 is a wasteful number, since it uses less digits than its factorization.

87628692801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194672.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 87628692801 in words is "eighty-seven billion, six hundred twenty-eight million, six hundred ninety-two thousand, eight hundred one".

Divisors: 1 3 13 39 12323 36969 160199 182333 480597 546999 2370329 7110987 2246889559 6740668677 29209564267 87628692801