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8969693920 = 2551137181761
BaseRepresentation
bin10000101101010001…
…01010101011100000
3212011010001122212221
420112220222223200
5121332220201140
64042015400424
7435164066065
oct102650525340
925133048787
108969693920
113893181890
1218a3b23114
13acc3cbbc5
146113a6c6c
153776e214a
hex216a2aae0

8969693920 has 192 divisors, whose sum is σ = 23904683712. Its totient is φ = 3151872000.

The previous prime is 8969693899. The next prime is 8969693933. The reversal of 8969693920 is 293969698.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11786340 + ... + 11787100.

It is an arithmetic number, because the mean of its divisors is an integer number (124503561).

Almost surely, 28969693920 is an apocalyptic number.

8969693920 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 8969693920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11952341856).

8969693920 is an abundant number, since it is smaller than the sum of its proper divisors (14934989792).

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

8969693920 is a wasteful number, since it uses less digits than its factorization.

8969693920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 61.

The square root of 8969693920 is about 94708.4680480051. The cubic root of 8969693920 is about 2077.7464127709.

The spelling of 8969693920 in words is "eight billion, nine hundred sixty-nine million, six hundred ninety-three thousand, nine hundred twenty".