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86887628 = 2221721907
BaseRepresentation
bin1010010110111…
…00110011001100
320001111100102022
411023130303030
5134220401003
612342145312
72103350462
oct513346314
9201440368
1086887628
1145055a63
1225122238
13150023c9
14b77a832
157964738
hex52dcccc

86887628 has 6 divisors (see below), whose sum is σ = 152053356. Its totient is φ = 43443812.

The previous prime is 86887547. The next prime is 86887657. The reversal of 86887628 is 82678868.

It is a self number, because there is not a number n which added to its sum of digits gives 86887628.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10860950 + ... + 10860957.

It is an arithmetic number, because the mean of its divisors is an integer number (25342226).

Almost surely, 286887628 is an apocalyptic number.

It is an amenable number.

86887628 is a deficient number, since it is larger than the sum of its proper divisors (65165728).

86887628 is a wasteful number, since it uses less digits than its factorization.

86887628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21721911 (or 21721909 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 53.

The square root of 86887628 is about 9321.3533352191. The cubic root of 86887628 is about 442.9139038490.

The spelling of 86887628 in words is "eighty-six million, eight hundred eighty-seven thousand, six hundred twenty-eight".

Divisors: 1 2 4 21721907 43443814 86887628