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108912 = 2432269
BaseRepresentation
bin11010100101110000
312112101210
4122211300
511441122
62200120
7632346
oct324560
9175353
10108912
1174911
1253040
133a75b
142b996
152240c
hex1a970

108912 has 20 divisors (see below), whose sum is σ = 281480. Its totient is φ = 36288.

The previous prime is 108907. The next prime is 108917. The reversal of 108912 is 219801.

It is an interprime number because it is at equal distance from previous prime (108907) and next prime (108917).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108917) by changing a digit.

108912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (14074).

2108912 is an apocalyptic number.

108912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108912 is an abundant number, since it is smaller than the sum of its proper divisors (172568).

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

108912 is a wasteful number, since it uses less digits than its factorization.

108912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 108912 is about 330.0181813173. The cubic root of 108912 is about 47.7557032012.

Subtracting 108912 from its reverse (219801), we obtain a square (110889 = 3332).

The spelling of 108912 in words is "one hundred eight thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 2269 4538 6807 9076 13614 18152 27228 36304 54456 108912