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89966072 = 2371606537
BaseRepresentation
bin1010101110011…
…00010111111000
320021021202020202
411113030113320
5141012403242
612532141332
72141461520
oct527142770
9207252222
1089966072
1146868929
1226167848
131583c681
14bd3c680
157d71932
hex55cc5f8

89966072 has 16 divisors (see below), whose sum is σ = 192784560. Its totient is φ = 38556864.

The previous prime is 89966029. The next prime is 89966081. The reversal of 89966072 is 27066998.

It is a super-2 number, since 2×899660722 = 16187788222218368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 803213 + ... + 803324.

It is an arithmetic number, because the mean of its divisors is an integer number (12049035).

Almost surely, 289966072 is an apocalyptic number.

It is an amenable number.

89966072 is an abundant number, since it is smaller than the sum of its proper divisors (102818488).

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

89966072 is a wasteful number, since it uses less digits than its factorization.

89966072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606550 (or 1606546 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 89966072 is about 9485.0446493414. The cubic root of 89966072 is about 448.0841545779.

The spelling of 89966072 in words is "eighty-nine million, nine hundred sixty-six thousand, seventy-two".

Divisors: 1 2 4 7 8 14 28 56 1606537 3213074 6426148 11245759 12852296 22491518 44983036 89966072