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89899725272 = 2371984492223
BaseRepresentation
bin101001110111001110…
…0001111000111011000
322121001021012020001112
41103232130033013120
52433103312202042
6105144355035452
76331541025260
oct1235634170730
9277037166045
1089899725272
1135143062215
121550b29bb88
138629113716
1444cb8787a0
152512670982
hex14ee70f1d8

89899725272 has 32 divisors (see below), whose sum is σ = 202781337600. Its totient is φ = 36500639904.

The previous prime is 89899725257. The next prime is 89899725281. The reversal of 89899725272 is 27252799898.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42245048 + ... + 42247175.

It is an arithmetic number, because the mean of its divisors is an integer number (6336916800).

Almost surely, 289899725272 is an apocalyptic number.

It is an amenable number.

89899725272 is an abundant number, since it is smaller than the sum of its proper divisors (112881612328).

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

89899725272 is a wasteful number, since it uses less digits than its factorization.

89899725272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84492255 (or 84492251 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 68.

The spelling of 89899725272 in words is "eighty-nine billion, eight hundred ninety-nine million, seven hundred twenty-five thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 84492223 168984446 337968892 591445561 675937784 1182891122 1605352237 2365782244 3210704474 4731564488 6421408948 11237465659 12842817896 22474931318 44949862636 89899725272