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12347108 = 2215719661
BaseRepresentation
bin101111000110…
…011011100100
3212020022001022
4233012123210
511130101413
61120350312
7206643254
oct57063344
925208038
1012347108
116a73624
124175398
132733ca7
1418d5964
15113d608
hexbc66e4

12347108 has 12 divisors (see below), whose sum is σ = 21746172. Its totient is φ = 6133920.

The previous prime is 12347099. The next prime is 12347123. The reversal of 12347108 is 80174321.

It can be written as a sum of positive squares in 2 ways, for example, as 5207524 + 7139584 = 2282^2 + 2672^2 .

It is a congruent number.

It is an unprimeable number.

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, 9203 + ... + 10458.

It is an arithmetic number, because the mean of its divisors is an integer number (1812181).

Almost surely, 212347108 is an apocalyptic number.

It is an amenable number.

12347108 is a deficient number, since it is larger than the sum of its proper divisors (9399064).

12347108 is a wasteful number, since it uses less digits than its factorization.

12347108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19822 (or 19820 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 12347108 is about 3513.8451872557. The cubic root of 12347108 is about 231.1293416818.

The spelling of 12347108 in words is "twelve million, three hundred forty-seven thousand, one hundred eight".

Divisors: 1 2 4 157 314 628 19661 39322 78644 3086777 6173554 12347108