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118664380 = 2255933219
BaseRepresentation
bin1110001001010…
…10110010111100
322021021202221001
413010222302330
5220334230010
615435220044
72640426202
oct704526274
9267252831
10118664380
1160a8a33a
12338a7624
131b77a013
1411a8d072
15a63ec3a
hex712acbc

118664380 has 12 divisors (see below), whose sum is σ = 249195240. Its totient is φ = 47465744.

The previous prime is 118664363. The next prime is 118664387. The reversal of 118664380 is 83466811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118664387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2966590 + ... + 2966629.

It is an arithmetic number, because the mean of its divisors is an integer number (20766270).

Almost surely, 2118664380 is an apocalyptic number.

118664380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118664380 is an abundant number, since it is smaller than the sum of its proper divisors (130530860).

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

118664380 is a wasteful number, since it uses less digits than its factorization.

118664380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933228 (or 5933226 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 118664380 is about 10893.3181354443. The cubic root of 118664380 is about 491.4056265685.

The spelling of 118664380 in words is "one hundred eighteen million, six hundred sixty-four thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5933219 11866438 23732876 29666095 59332190 118664380