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88639416125988 = 2237131091987374783
BaseRepresentation
bin10100001001110111111000…
…111010010100101000100100
3102121211211211022111010220120
4110021313320322110220210
543104232011012012423
6512304215143201540
724445662235412040
oct2411677072245044
9377754738433816
1088639416125988
112627484663a802
129b36ab51462b0
133a5c8794c5540
1417c62562d9020
15a3aaabd1dee3
hex509df8e94a24

88639416125988 has 192 divisors, whose sum is σ = 257019551416320. Its totient is φ = 23151237585408.

The previous prime is 88639416125983. The next prime is 88639416125999. The reversal of 88639416125988 is 88952161493688.

It is a super-2 number, since 2×886394161259882 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is not an unprimeable number, because it can be changed into a prime (88639416125983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 236321245 + ... + 236696027.

It is an arithmetic number, because the mean of its divisors is an integer number (1338643496960).

Almost surely, 288639416125988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88639416125988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128509775708160).

88639416125988 is an abundant number, since it is smaller than the sum of its proper divisors (168380135290332).

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

88639416125988 is a wasteful number, since it uses less digits than its factorization.

88639416125988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376906 (or 376904 counting only the distinct ones).

The product of its digits is 1433272320, while the sum is 78.

The spelling of 88639416125988 in words is "eighty-eight trillion, six hundred thirty-nine billion, four hundred sixteen million, one hundred twenty-five thousand, nine hundred eighty-eight".