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108912212 = 2257747189
BaseRepresentation
bin1100111110111…
…01111001010100
321120221022110122
412133131321110
5210340142322
614450211112
72461511213
oct637357124
9246838418
10108912212
11565293a2
1230583a98
13197441c6
141067107a
159865442
hex67dde54

108912212 has 12 divisors (see below), whose sum is σ = 190930740. Its totient is φ = 54360576.

The previous prime is 108912203. The next prime is 108912247. The reversal of 108912212 is 212219801.

It can be written as a sum of positive squares in 2 ways, for example, as 108076816 + 835396 = 10396^2 + 914^2 .

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21287 + ... + 25902.

It is an arithmetic number, because the mean of its divisors is an integer number (15910895).

Almost surely, 2108912212 is an apocalyptic number.

It is an amenable number.

108912212 is a deficient number, since it is larger than the sum of its proper divisors (82018528).

108912212 is a wasteful number, since it uses less digits than its factorization.

108912212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47770 (or 47768 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 108912212 is about 10436.1013793466. The cubic root of 108912212 is about 477.5573418706.

The spelling of 108912212 in words is "one hundred eight million, nine hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 577 1154 2308 47189 94378 188756 27228053 54456106 108912212