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88012520 = 2352200313
BaseRepresentation
bin1010011111011…
…11011011101000
320010121111110222
411033233123220
5140012400040
612422225212
72116044161
oct517573350
9203544428
1088012520
1145754122
1225585208
131530741b
14b990768
157ad7bb5
hex53ef6e8

88012520 has 16 divisors (see below), whose sum is σ = 198028260. Its totient is φ = 35204992.

The previous prime is 88012501. The next prime is 88012567. The reversal of 88012520 is 2521088.

It can be written as a sum of positive squares in 2 ways, for example, as 80317444 + 7695076 = 8962^2 + 2774^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 88012520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100117 + ... + 1100196.

Almost surely, 288012520 is an apocalyptic number.

It is an amenable number.

88012520 is an abundant number, since it is smaller than the sum of its proper divisors (110015740).

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

88012520 is a wasteful number, since it uses less digits than its factorization.

88012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200324 (or 2200320 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 88012520 is about 9381.4988141554. The cubic root of 88012520 is about 444.8171112278.

The spelling of 88012520 in words is "eighty-eight million, twelve thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2200313 4400626 8801252 11001565 17602504 22003130 44006260 88012520