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118380164 = 22753241331
BaseRepresentation
bin1110000111001…
…01011010000100
322020202100001112
413003211122010
5220301131124
615425144152
72635133450
oct703453204
9266670045
10118380164
1160905851
123378b058
131b6aa846
1411a17660
15a5d590e
hex70e5684

118380164 has 48 divisors (see below), whose sum is σ = 242960256. Its totient is φ = 49420800.

The previous prime is 118380133. The next prime is 118380167. The reversal of 118380164 is 461083811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 118380164.

It is not an unprimeable number, because it can be changed into a prime (118380167) 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, 357479 + ... + 357809.

It is an arithmetic number, because the mean of its divisors is an integer number (5061672).

Almost surely, 2118380164 is an apocalyptic number.

118380164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118380164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121480128).

118380164 is an abundant number, since it is smaller than the sum of its proper divisors (124580092).

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

118380164 is a wasteful number, since it uses less digits than its factorization.

118380164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 118380164 is about 10880.2648864814. The cubic root of 118380164 is about 491.0129869927.

The spelling of 118380164 in words is "one hundred eighteen million, three hundred eighty thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 53 106 212 241 331 371 482 662 742 964 1324 1484 1687 2317 3374 4634 6748 9268 12773 17543 25546 35086 51092 70172 79771 89411 122801 159542 178822 245602 319084 357644 491204 558397 1116794 2233588 4227863 8455726 16911452 29595041 59190082 118380164