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89719244160 = 27357132917707
BaseRepresentation
bin101001110001110101…
…1110000010110000000
322120120200120211111220
41103203223300112000
52432221111303120
6105114430435040
76324216664260
oct1234353602600
9276520524456
1089719244160
11350601a1077
121547a962a80
1385ca901870
1444b18d77a0
1525018beb40
hex14e3af0580

89719244160 has 512 divisors, whose sum is σ = 364133145600. Its totient is φ = 18275991552.

The previous prime is 89719244137. The next prime is 89719244171. The reversal of 89719244160 is 6144291798.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5058027 + ... + 5075733.

It is an arithmetic number, because the mean of its divisors is an integer number (711197550).

Almost surely, 289719244160 is an apocalyptic number.

89719244160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89719244160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182066572800).

89719244160 is an abundant number, since it is smaller than the sum of its proper divisors (274413901440).

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

89719244160 is a wasteful number, since it uses less digits than its factorization.

89719244160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778 (or 17766 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 89719244160 in words is "eighty-nine billion, seven hundred nineteen million, two hundred forty-four thousand, one hundred sixty".