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88678120 = 23517130409
BaseRepresentation
bin1010100100100…
…01111011101000
320011212022111211
411102101323220
5140200144440
612444402504
72124515536
oct522217350
9204768454
1088678120
1146069203
1225846434
13154ab37b
14bac5156
157bb9eea
hex5491ee8

88678120 has 32 divisors (see below), whose sum is σ = 211264200. Its totient is φ = 33384448.

The previous prime is 88678099. The next prime is 88678123. The reversal of 88678120 is 2187688.

It can be written as a sum of positive squares in 4 ways, for example, as 85045284 + 3632836 = 9222^2 + 1906^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (88678123) 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 7 ways as a sum of consecutive naturals, for example, 64525 + ... + 65884.

Almost surely, 288678120 is an apocalyptic number.

It is an amenable number.

88678120 is an abundant number, since it is smaller than the sum of its proper divisors (122586080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

88678120 is a wasteful number, since it uses less digits than its factorization.

88678120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130437 (or 130433 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 88678120 is about 9416.9060736529. The cubic root of 88678120 is about 445.9356151235.

The spelling of 88678120 in words is "eighty-eight million, six hundred seventy-eight thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 130409 260818 521636 652045 1043272 1304090 2216953 2608180 4433906 5216360 8867812 11084765 17735624 22169530 44339060 88678120