Base | Representation |
---|---|
bin | 101111101101… |
… | …001101110000 |
3 | 212112100222000 |
4 | 233231031300 |
5 | 11200142333 |
6 | 1124014000 |
7 | 211204356 |
oct | 57551560 |
9 | 25470860 |
10 | 12505968 |
11 | 7071a12 |
12 | 4231300 |
13 | 278b3a7 |
14 | 19377d6 |
15 | 1170713 |
hex | bed370 |
12505968 has 40 divisors (see below), whose sum is σ = 35898000. Its totient is φ = 4168512.
The previous prime is 12505957. The next prime is 12505979. The reversal of 12505968 is 86950521.
It is a happy number.
12505968 is a `hidden beast` number, since 12 + 50 + 596 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (12505957) and next prime (12505979).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14043 + ... + 14906.
It is an arithmetic number, because the mean of its divisors is an integer number (897450).
Almost surely, 212505968 is an apocalyptic number.
12505968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
12505968 is an abundant number, since it is smaller than the sum of its proper divisors (23392032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12505968 is a wasteful number, since it uses less digits than its factorization.
12505968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28966 (or 28954 counting only the distinct ones).
The product of its (nonzero) digits is 21600, while the sum is 36.
The square root of 12505968 is about 3536.3778078706. The cubic root of 12505968 is about 232.1163704737.
The spelling of 12505968 in words is "twelve million, five hundred five thousand, nine hundred sixty-eight".
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