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87425732 = 22131166843
BaseRepresentation
bin1010011011000…
…00001011000100
320002111200120002
411031200023010
5134340110412
612401500432
72111051342
oct515401304
9202450502
1087425732
1145393279
1225341718
1315160304
14b87a992
157a1ddc2
hex53602c4

87425732 has 12 divisors (see below), whose sum is σ = 154163856. Its totient is φ = 43378920.

The previous prime is 87425729. The next prime is 87425743. The reversal of 87425732 is 23752478.

It is a super-3 number, since 3×874257323 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82898 + ... + 83945.

It is an arithmetic number, because the mean of its divisors is an integer number (12846988).

Almost surely, 287425732 is an apocalyptic number.

It is an amenable number.

87425732 is a deficient number, since it is larger than the sum of its proper divisors (66738124).

87425732 is a wasteful number, since it uses less digits than its factorization.

87425732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166978 (or 166976 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 87425732 is about 9350.1728326272. The cubic root of 87425732 is about 443.8263598806.

The spelling of 87425732 in words is "eighty-seven million, four hundred twenty-five thousand, seven hundred thirty-two".

Divisors: 1 2 4 131 262 524 166843 333686 667372 21856433 43712866 87425732