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87652916 = 22134141113
BaseRepresentation
bin1010011100101…
…11101000110100
320002221020012022
411032113220310
5134414343131
612410412312
72113015601
oct516275064
9202836168
1087652916
1145528a2a
1225431098
131520c840
14b8d96a8
157a6637b
hex5397a34

87652916 has 24 divisors (see below), whose sum is σ = 169225224. Its totient is φ = 39467520.

The previous prime is 87652891. The next prime is 87652919. The reversal of 87652916 is 61925678.

It can be written as a sum of positive squares in 4 ways, for example, as 417316 + 87235600 = 646^2 + 9340^2 .

It is a super-3 number, since 3×876529163 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87652919) 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, 18425 + ... + 22688.

It is an arithmetic number, because the mean of its divisors is an integer number (7051051).

Almost surely, 287652916 is an apocalyptic number.

It is an amenable number.

87652916 is a deficient number, since it is larger than the sum of its proper divisors (81572308).

87652916 is a wasteful number, since it uses less digits than its factorization.

87652916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41171 (or 41169 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 87652916 is about 9362.3136029509. The cubic root of 87652916 is about 444.2104688927.

The spelling of 87652916 in words is "eighty-seven million, six hundred fifty-two thousand, nine hundred sixteen".

Divisors: 1 2 4 13 26 41 52 82 164 533 1066 2132 41113 82226 164452 534469 1068938 1685633 2137876 3371266 6742532 21913229 43826458 87652916