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117240880 = 2457120641
BaseRepresentation
bin1101111110011…
…11010000110000
322011121110020211
412333033100300
5220003202010
615344513504
72622350101
oct677172060
9264543224
10117240880
11601a7899
123331b894
131b39c103
14117dc3a8
15a45d08a
hex6fcf430

117240880 has 40 divisors (see below), whose sum is σ = 276437664. Its totient is φ = 46233600.

The previous prime is 117240869. The next prime is 117240911. The reversal of 117240880 is 88042711.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641 + ... + 16000.

Almost surely, 2117240880 is an apocalyptic number.

117240880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117240880 is an abundant number, since it is smaller than the sum of its proper divisors (159196784).

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

117240880 is a wasteful number, since it uses less digits than its factorization.

117240880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20725 (or 20719 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 117240880 is about 10827.7827831925. The cubic root of 117240880 is about 489.4327463150.

The spelling of 117240880 in words is "one hundred seventeen million, two hundred forty thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 71 80 142 284 355 568 710 1136 1420 2840 5680 20641 41282 82564 103205 165128 206410 330256 412820 825640 1465511 1651280 2931022 5862044 7327555 11724088 14655110 23448176 29310220 58620440 117240880