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89900512 = 2513216107
BaseRepresentation
bin1010101101111…
…00010111100000
320021011102022121
411112330113200
5141003304022
612530514024
72141066422
oct526742740
9207142277
1089900512
1146823649
1226135914
1315818890
14bd22812
157d5c2c7
hex55bc5e0

89900512 has 24 divisors (see below), whose sum is σ = 190607256. Its totient is φ = 41492352.

The previous prime is 89900507. The next prime is 89900513. The reversal of 89900512 is 21500998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89900513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107638 + ... + 108469.

It is an arithmetic number, because the mean of its divisors is an integer number (7941969).

Almost surely, 289900512 is an apocalyptic number.

It is an amenable number.

89900512 is an abundant number, since it is smaller than the sum of its proper divisors (100706744).

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

89900512 is a wasteful number, since it uses less digits than its factorization.

89900512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216130 (or 216122 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 89900512 is about 9481.5880526418. The cubic root of 89900512 is about 447.9752856264.

It can be divided in two parts, 89 and 900512, that added together give a square (900601 = 9492).

The spelling of 89900512 in words is "eighty-nine million, nine hundred thousand, five hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 216107 432214 864428 1728856 2809391 3457712 5618782 6915424 11237564 22475128 44950256 89900512