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89808072 = 23313192837
BaseRepresentation
bin1010101101001…
…01110011001000
320020222201111220
411112211303020
5140442324242
612524522040
72140233054
oct526456310
9206881456
1089808072
1146770152
12260b0320
13157b5793
14bcdac64
157d3ebec
hex55a5cc8

89808072 has 32 divisors (see below), whose sum is σ = 224769600. Its totient is φ = 29902784.

The previous prime is 89808067. The next prime is 89808083. The reversal of 89808072 is 27080898.

It is a happy number.

It is an unprimeable number.

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, 30238 + ... + 33074.

It is an arithmetic number, because the mean of its divisors is an integer number (7024050).

Almost surely, 289808072 is an apocalyptic number.

It is an amenable number.

89808072 is an abundant number, since it is smaller than the sum of its proper divisors (134961528).

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

89808072 is a wasteful number, since it uses less digits than its factorization.

89808072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165 (or 4161 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 89808072 is about 9476.7120880609. The cubic root of 89808072 is about 447.8216897750.

The spelling of 89808072 in words is "eighty-nine million, eight hundred eight thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1319 2638 2837 3957 5276 5674 7914 8511 10552 11348 15828 17022 22696 31656 34044 68088 3742003 7484006 11226009 14968012 22452018 29936024 44904036 89808072