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87061492 = 2275875297
BaseRepresentation
bin1010011000001…
…11001111110100
320001211011220201
411030013033310
5134241431432
612350010244
72105003410
oct514071764
9201734821
1087061492
1145164651
12251a6984
131506359b
14b7c3d40
15799aee7
hex53073f4

87061492 has 24 divisors (see below), whose sum is σ = 174452544. Its totient is φ = 37241472.

The previous prime is 87061489. The next prime is 87061529. The reversal of 87061492 is 29416078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13788 + ... + 19084.

It is an arithmetic number, because the mean of its divisors is an integer number (7268856).

Almost surely, 287061492 is an apocalyptic number.

It is an amenable number.

87061492 is an abundant number, since it is smaller than the sum of its proper divisors (87391052).

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

87061492 is a wasteful number, since it uses less digits than its factorization.

87061492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 87061492 is about 9330.6747880311. The cubic root of 87061492 is about 443.2091337442.

The spelling of 87061492 in words is "eighty-seven million, sixty-one thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 587 1174 2348 4109 5297 8218 10594 16436 21188 37079 74158 148316 3109339 6218678 12437356 21765373 43530746 87061492