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89641956948 = 2237470163079
BaseRepresentation
bin101001101111100010…
…0111011011001010100
322120101022011020101120
41103133010323121110
52432041320110243
6105103030123540
76322261030155
oct1233704733124
9276338136346
1089641956948
1135020603045
1215458ab05b0
1385b78b119b
1444a553992c
1524e9c04c83
hex14df13b654

89641956948 has 12 divisors (see below), whose sum is σ = 209164566240. Its totient is φ = 29880652312.

The previous prime is 89641956923. The next prime is 89641956967. The reversal of 89641956948 is 84965914698.

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

It is a super-3 number, since 3×896419569483 (a number of 34 digits) contains 333 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, 3735081528 + ... + 3735081551.

It is an arithmetic number, because the mean of its divisors is an integer number (17430380520).

Almost surely, 289641956948 is an apocalyptic number.

It is an amenable number.

89641956948 is an abundant number, since it is smaller than the sum of its proper divisors (119522609292).

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

89641956948 is a wasteful number, since it uses less digits than its factorization.

89641956948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470163086 (or 7470163084 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 69.

The spelling of 89641956948 in words is "eighty-nine billion, six hundred forty-one million, nine hundred fifty-six thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 7470163079 14940326158 22410489237 29880652316 44820978474 89641956948