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87520268 = 22112211857
BaseRepresentation
bin1010011011101…
…11010000001100
320002200111020102
411031313100030
5134401122033
612403510232
72111624063
oct515672014
9202614212
1087520268
1145448300
1225388378
1315194354
14b8a31da
157a3bde8
hex537740c

87520268 has 36 divisors (see below), whose sum is σ = 169345176. Its totient is φ = 39547200.

The previous prime is 87520261. The next prime is 87520273. The reversal of 87520268 is 86202578.

It is not an unprimeable number, because it can be changed into a prime (87520261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101696 + ... + 102552.

Almost surely, 287520268 is an apocalyptic number.

It is an amenable number.

87520268 is a deficient number, since it is larger than the sum of its proper divisors (81824908).

87520268 is a wasteful number, since it uses less digits than its factorization.

87520268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 87520268 is about 9355.2267743759. The cubic root of 87520268 is about 443.9862763932.

The spelling of 87520268 in words is "eighty-seven million, five hundred twenty thousand, two hundred sixty-eight".

Divisors: 1 2 4 11 22 44 121 211 242 422 484 844 857 1714 2321 3428 4642 9284 9427 18854 25531 37708 51062 102124 103697 180827 207394 361654 414788 723308 1989097 3978194 7956388 21880067 43760134 87520268