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12939108 = 22371317241
BaseRepresentation
bin110001010110…
…111101100100
3220100101010020
4301112331210
511303022413
61141155140
7214660230
oct61267544
926311106
1012939108
117338386
1243bbab0
1328b05a0
141a0b5c0
151208c23
hexc56f64

12939108 has 144 divisors (see below), whose sum is σ = 40435584. Its totient is φ = 3133440.

The previous prime is 12939083. The next prime is 12939109. The reversal of 12939108 is 80193921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12939109) 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 47 ways as a sum of consecutive naturals, for example, 315568 + ... + 315608.

Almost surely, 212939108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12939108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20217792).

12939108 is an abundant number, since it is smaller than the sum of its proper divisors (27496476).

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

12939108 is a wasteful number, since it uses less digits than its factorization.

12939108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 12939108 is about 3597.0971629913. The cubic root of 12939108 is about 234.7657723539.

It can be divided in two parts, 1293 and 9108, that added together give a palindrome (10401).

The spelling of 12939108 in words is "twelve million, nine hundred thirty-nine thousand, one hundred eight".

Divisors: 1 2 3 4 6 7 12 13 14 17 21 26 28 34 39 41 42 51 52 68 78 82 84 91 102 119 123 156 164 182 204 221 238 246 273 287 289 357 364 442 476 492 533 546 574 578 663 697 714 861 867 884 1066 1092 1148 1156 1326 1394 1428 1547 1599 1722 1734 2023 2091 2132 2652 2788 3094 3198 3444 3468 3731 3757 4046 4182 4641 4879 6069 6188 6396 7462 7514 8092 8364 9061 9282 9758 11193 11271 11849 12138 14637 14924 15028 18122 18564 19516 22386 22542 23698 24276 26299 27183 29274 35547 36244 44772 45084 47396 52598 54366 58548 63427 71094 78897 82943 105196 108732 126854 142188 154037 157794 165886 190281 248829 253708 308074 315588 331772 380562 462111 497658 616148 761124 924222 995316 1078259 1848444 2156518 3234777 4313036 6469554 12939108