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108712132 = 22125921587
BaseRepresentation
bin1100111101011…
…01000011000100
321120120011000021
412132231003010
5210312242012
614442024524
72460015664
oct636550304
9246504007
10108712132
1156402041
12304a8144
13196a4109
141061c1a4
159826007
hex67ad0c4

108712132 has 12 divisors (see below), whose sum is σ = 190406160. Its totient is φ = 54310376.

The previous prime is 108712067. The next prime is 108712139. The reversal of 108712132 is 231217801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 108712097 and 108712106.

It is not an unprimeable number, because it can be changed into a prime (108712139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5758 + ... + 15829.

It is an arithmetic number, because the mean of its divisors is an integer number (15867180).

Almost surely, 2108712132 is an apocalyptic number.

It is an amenable number.

108712132 is a deficient number, since it is larger than the sum of its proper divisors (81694028).

108712132 is a wasteful number, since it uses less digits than its factorization.

108712132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22850 (or 22848 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 108712132 is about 10426.5110175936. The cubic root of 108712132 is about 477.2647262503.

Adding to 108712132 its reverse (231217801), we get a palindrome (339929933).

The spelling of 108712132 in words is "one hundred eight million, seven hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 1259 2518 5036 21587 43174 86348 27178033 54356066 108712132