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87662416 = 245699629
BaseRepresentation
bin1010011100110…
…01111101010000
320002221201020011
411032121331100
5134420144131
612410524304
72113055362
oct516317520
9202851204
1087662416
1145535086
1225436694
1315213c6a
14b8dcd32
157a690b1
hex5399f50

87662416 has 20 divisors (see below), whose sum is σ = 170162100. Its totient is φ = 43749632.

The previous prime is 87662413. The next prime is 87662417. The reversal of 87662416 is 61426678.

It can be written as a sum of positive squares in 2 ways, for example, as 57456400 + 30206016 = 7580^2 + 5496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87662411) 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, 4290 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (8508105).

Almost surely, 287662416 is an apocalyptic number.

It is an amenable number.

87662416 is a deficient number, since it is larger than the sum of its proper divisors (82499684).

87662416 is a wasteful number, since it uses less digits than its factorization.

87662416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10206 (or 10200 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 87662416 is about 9362.8209424297. The cubic root of 87662416 is about 444.2265164554.

The spelling of 87662416 in words is "eighty-seven million, six hundred sixty-two thousand, four hundred sixteen".

Divisors: 1 2 4 8 16 569 1138 2276 4552 9104 9629 19258 38516 77032 154064 5478901 10957802 21915604 43831208 87662416