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89900838 = 23249910009
BaseRepresentation
bin1010101101111…
…00011100100110
320021011102202200
411112330130212
5141003311323
612530515330
72141100366
oct526743446
9207142680
1089900838
1146823915
1226135b46
1315818a81
14bd229a6
157d5c443
hex55bc726

89900838 has 24 divisors (see below), whose sum is σ = 195195000. Its totient is φ = 29903904.

The previous prime is 89900827. The next prime is 89900843. The reversal of 89900838 is 83800998.

It is a junction number, because it is equal to n+sod(n) for n = 89900793 and 89900802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3978 + ... + 13986.

It is an arithmetic number, because the mean of its divisors is an integer number (8133125).

Almost surely, 289900838 is an apocalyptic number.

89900838 is an abundant number, since it is smaller than the sum of its proper divisors (105294162).

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

89900838 is a wasteful number, since it uses less digits than its factorization.

89900838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516 (or 10513 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 89900838 is about 9481.6052438393. The cubic root of 89900838 is about 447.9758271130.

The spelling of 89900838 in words is "eighty-nine million, nine hundred thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 499 998 1497 2994 4491 8982 10009 20018 30027 60054 90081 180162 4994491 9988982 14983473 29966946 44950419 89900838