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83790120960 = 21132571397103
BaseRepresentation
bin100111000001001000…
…1111100100000000000
322000021110220011112100
41032002101330200000
52333100232332320
6102254225030400
76024253163640
oct1160221744000
9260243804470
1083790120960
1132598380057
12142a5185400
137b94420740
1440ac298520
1522a60d7790
hex138247c800

83790120960 has 1152 divisors, whose sum is σ = 364607792640. Its totient is φ = 17326669824.

The previous prime is 83790120941. The next prime is 83790120961. The reversal of 83790120960 is 6902109738.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (83790120961) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 813496269 + ... + 813496371.

It is an arithmetic number, because the mean of its divisors is an integer number (316499820).

Almost surely, 283790120960 is an apocalyptic number.

83790120960 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 83790120960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182303896320).

83790120960 is an abundant number, since it is smaller than the sum of its proper divisors (280817671680).

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

83790120960 is a wasteful number, since it uses less digits than its factorization.

83790120960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 83790120960 in words is "eighty-three billion, seven hundred ninety million, one hundred twenty thousand, nine hundred sixty".