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89726408 = 231721972
BaseRepresentation
bin1010101100100…
…01110111001000
320020211120111022
411112101313020
5140432221113
612523052012
72136443012
oct526216710
9206746438
1089726408
1146714862
1226071008
1315787565
14bcb91b2
157d25908
hex5591dc8

89726408 has 36 divisors (see below), whose sum is σ = 179627235. Its totient is φ = 42009856.

The previous prime is 89726401. The next prime is 89726411. The reversal of 89726408 is 80462798.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 87647044 + 2079364 = 9362^2 + 1442^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=6698.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89726401) 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 8 ways as a sum of consecutive naturals, for example, 455366 + ... + 455562.

Almost surely, 289726408 is an apocalyptic number.

It is an amenable number.

89726408 is an abundant number, since it is smaller than the sum of its proper divisors (89900827).

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

89726408 is a wasteful number, since it uses less digits than its factorization.

89726408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 89726408 is about 9472.4024407750. The cubic root of 89726408 is about 447.6859113306.

The spelling of 89726408 in words is "eighty-nine million, seven hundred twenty-six thousand, four hundred eight".

Divisors: 1 2 4 8 17 34 68 136 197 289 394 578 788 1156 1576 2312 3349 6698 13396 26792 38809 56933 77618 113866 155236 227732 310472 455464 659753 1319506 2639012 5278024 11215801 22431602 44863204 89726408