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89953788 = 2237496149
BaseRepresentation
bin1010101110010…
…01010111111100
320021021010101210
411113021113330
5141012010123
612532004420
72141410641
oct527112774
9207233353
1089953788
114685a681
1226160710
1315836bc2
14bd37dc8
157d6ce93
hex55c95fc

89953788 has 12 divisors (see below), whose sum is σ = 209892200. Its totient is φ = 29984592.

The previous prime is 89953781. The next prime is 89953837. The reversal of 89953788 is 88735998.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89953781) 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, 3748063 + ... + 3748086.

Almost surely, 289953788 is an apocalyptic number.

It is an amenable number.

89953788 is an abundant number, since it is smaller than the sum of its proper divisors (119938412).

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

89953788 is a wasteful number, since it uses less digits than its factorization.

89953788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496156 (or 7496154 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 89953788 is about 9484.3970815229. The cubic root of 89953788 is about 448.0637597921.

The spelling of 89953788 in words is "eighty-nine million, nine hundred fifty-three thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 7496149 14992298 22488447 29984596 44976894 89953788