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87470948 = 2247465271
BaseRepresentation
bin1010011011010…
…11001101100100
320002120222120202
411031223031210
5134343032243
612402450032
72111330225
oct515531544
9202528522
1087470948
1145414244
1225363918
1315177a76
14b88d24c
157a2c4b8
hex536b364

87470948 has 12 divisors (see below), whose sum is σ = 156331392. Its totient is φ = 42804840.

The previous prime is 87470947. The next prime is 87470951. The reversal of 87470948 is 84907478.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (87470947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232448 + ... + 232823.

It is an arithmetic number, because the mean of its divisors is an integer number (13027616).

Almost surely, 287470948 is an apocalyptic number.

It is an amenable number.

87470948 is a deficient number, since it is larger than the sum of its proper divisors (68860444).

87470948 is a wasteful number, since it uses less digits than its factorization.

87470948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465322 (or 465320 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 87470948 is about 9352.5904432943. The cubic root of 87470948 is about 443.9028613618.

The spelling of 87470948 in words is "eighty-seven million, four hundred seventy thousand, nine hundred forty-eight".

Divisors: 1 2 4 47 94 188 465271 930542 1861084 21867737 43735474 87470948