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87375668 = 22611133169
BaseRepresentation
bin1010011010100…
…11111100110100
320002102010212212
411031103330310
5134332010133
612400432552
72110452362
oct515237464
9202363785
1087375668
11453596a6
1225318758
13151435a3
14b866632
157a0e148
hex5353f34

87375668 has 24 divisors (see below), whose sum is σ = 156838920. Its totient is φ = 42577920.

The previous prime is 87375667. The next prime is 87375703. The reversal of 87375668 is 86657378.

It can be written as a sum of positive squares in 4 ways, for example, as 289444 + 87086224 = 538^2 + 9332^2 .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87375667) 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, 25988 + ... + 29156.

It is an arithmetic number, because the mean of its divisors is an integer number (6534955).

Almost surely, 287375668 is an apocalyptic number.

It is an amenable number.

87375668 is a deficient number, since it is larger than the sum of its proper divisors (69463252).

87375668 is a wasteful number, since it uses less digits than its factorization.

87375668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347 (or 3345 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 87375668 is about 9347.4952794853. The cubic root of 87375668 is about 443.7416252337.

The spelling of 87375668 in words is "eighty-seven million, three hundred seventy-five thousand, six hundred sixty-eight".

Divisors: 1 2 4 61 113 122 226 244 452 3169 6338 6893 12676 13786 27572 193309 358097 386618 716194 773236 1432388 21843917 43687834 87375668