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12985968 = 2431929491
BaseRepresentation
bin110001100010…
…011001110000
3220102202101210
4301202121300
511311022333
61142200120
7215243652
oct61423160
926382353
1012985968
11736a606
124423040
1328c8a08
141a206d2
151217a63
hexc62670

12985968 has 80 divisors (see below), whose sum is σ = 36604800. Its totient is φ = 3951360.

The previous prime is 12985919. The next prime is 12985969. The reversal of 12985968 is 86958921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26203 + ... + 26693.

It is an arithmetic number, because the mean of its divisors is an integer number (457560).

Almost surely, 212985968 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 12985968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18302400).

12985968 is an abundant number, since it is smaller than the sum of its proper divisors (23618832).

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

12985968 is a wasteful number, since it uses less digits than its factorization.

12985968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 544 counting only the distinct ones).

The product of its digits is 311040, while the sum is 48.

The square root of 12985968 is about 3603.6048618016. The cubic root of 12985968 is about 235.0488384990.

The spelling of 12985968 in words is "twelve million, nine hundred eighty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 29 38 48 57 58 76 87 114 116 152 174 228 232 304 348 456 464 491 551 696 912 982 1102 1392 1473 1653 1964 2204 2946 3306 3928 4408 5892 6612 7856 8816 9329 11784 13224 14239 18658 23568 26448 27987 28478 37316 42717 55974 56956 74632 85434 111948 113912 149264 170868 223896 227824 270541 341736 447792 541082 683472 811623 1082164 1623246 2164328 3246492 4328656 6492984 12985968