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88081668 = 223590619
BaseRepresentation
bin1010100000000…
…00010100000100
320010202000100000
411100000110010
5140022103133
612423521300
72116452603
oct520002404
9203660300
1088081668
11457a1074
12255b9230
131532ca3c
14b9aba3a
157aed413
hex5400504

88081668 has 36 divisors (see below), whose sum is σ = 230899760. Its totient is φ = 29360232.

The previous prime is 88081661. The next prime is 88081681. The reversal of 88081668 is 86618088.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (88081661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44338 + ... + 46281.

Almost surely, 288081668 is an apocalyptic number.

It is an amenable number.

88081668 is an abundant number, since it is smaller than the sum of its proper divisors (142818092).

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

88081668 is a wasteful number, since it uses less digits than its factorization.

88081668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90638 (or 90624 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 88081668 is about 9385.1834292144. The cubic root of 88081668 is about 444.9335725447.

The spelling of 88081668 in words is "eighty-eight million, eighty-one thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 90619 181238 271857 362476 543714 815571 1087428 1631142 2446713 3262284 4893426 7340139 9786852 14680278 22020417 29360556 44040834 88081668