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12631660116 = 2232963355261
BaseRepresentation
bin10111100001110011…
…11101011001010100
31012121022200211010120
423300321331121110
5201332201110431
65445232151540
7625011224265
oct136071753124
935538624116
1012631660116
1153a2274229
1225463985b0
131263c96bca
1487b88696c
154dde44196
hex2f0e7d654

12631660116 has 24 divisors (see below), whose sum is σ = 29483903904. Its totient is φ = 4209120480.

The previous prime is 12631660081. The next prime is 12631660133. The reversal of 12631660116 is 61106613621.

It is a super-2 number, since 2×126316601162 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142075 + ... + 213186.

It is an arithmetic number, because the mean of its divisors is an integer number (1228495996).

Almost surely, 212631660116 is an apocalyptic number.

It is an amenable number.

12631660116 is an abundant number, since it is smaller than the sum of its proper divisors (16852243788).

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

12631660116 is a wasteful number, since it uses less digits than its factorization.

12631660116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358231 (or 358229 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 12631660116 in words is "twelve billion, six hundred thirty-one million, six hundred sixty thousand, one hundred sixteen".

Divisors: 1 2 3 4 6 12 2963 5926 8889 11852 17778 35556 355261 710522 1065783 1421044 2131566 4263132 1052638343 2105276686 3157915029 4210553372 6315830058 12631660116