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118513388 = 227231631129
BaseRepresentation
bin1110001000001…
…01111011101100
322021000002210202
413010011323230
5220314412023
615432053032
72636230040
oct704057354
9267002722
10118513388
1160996954
1233834178
131b726386
1411a50020
15a610128
hex7105eec

118513388 has 48 divisors (see below), whose sum is σ = 249070080. Its totient is φ = 48242304.

The previous prime is 118513361. The next prime is 118513453. The reversal of 118513388 is 883315811.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104408 + ... + 105536.

It is an arithmetic number, because the mean of its divisors is an integer number (5188960).

Almost surely, 2118513388 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 118513388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124535040).

118513388 is an abundant number, since it is smaller than the sum of its proper divisors (130556692).

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

118513388 is a wasteful number, since it uses less digits than its factorization.

118513388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1324 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 118513388 is about 10886.3854423771. The cubic root of 118513388 is about 491.1971118445.

The spelling of 118513388 in words is "one hundred eighteen million, five hundred thirteen thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 23 28 46 92 161 163 322 326 644 652 1129 1141 2258 2282 3749 4516 4564 7498 7903 14996 15806 25967 26243 31612 51934 52486 103868 104972 181769 184027 363538 368054 727076 736108 1288189 2576378 4232621 5152756 8465242 16930484 29628347 59256694 118513388