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117239808 = 212372947
BaseRepresentation
bin1101111110011…
…11000000000000
322011121101210010
412333033000000
5220003133213
615344504520
72622344010
oct677170000
9264541703
10117239808
11601a7004
123331b140
131b39b78a
14117dbc40
15a45cac3
hex6fcf000

117239808 has 208 divisors, whose sum is σ = 377441280. Its totient is φ = 31653888.

The previous prime is 117239807. The next prime is 117239813. The reversal of 117239808 is 808932711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117239807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494441 + ... + 2494487.

Almost surely, 2117239808 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 117239808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188720640).

117239808 is an abundant number, since it is smaller than the sum of its proper divisors (260201472).

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

117239808 is an equidigital number, since it uses as much as digits as its factorization.

117239808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 117239808 is about 10827.7332807934. The cubic root of 117239808 is about 489.4312545899.

The spelling of 117239808 in words is "one hundred seventeen million, two hundred thirty-nine thousand, eight hundred eight".