Base | Representation |
---|---|
bin | 110010000100… |
… | …100100011000 |
3 | 220200212100220 |
4 | 302010210120 |
5 | 11330012122 |
6 | 1145200040 |
7 | 216365652 |
oct | 62044430 |
9 | 26625326 |
10 | 13125912 |
11 | 7455768 |
12 | 4490020 |
13 | 2947617 |
14 | 1a596d2 |
15 | 124425c |
hex | c84918 |
13125912 has 32 divisors (see below), whose sum is σ = 33281280. Its totient is φ = 4313120.
The previous prime is 13125899. The next prime is 13125923. The reversal of 13125912 is 21952131.
It is a Harshad number since it is a multiple of its sum of digits (24).
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, 2148 + ... + 5555.
It is an arithmetic number, because the mean of its divisors is an integer number (1040040).
Almost surely, 213125912 is an apocalyptic number.
13125912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
13125912 is an abundant number, since it is smaller than the sum of its proper divisors (20155368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13125912 is a wasteful number, since it uses less digits than its factorization.
13125912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7783 (or 7779 counting only the distinct ones).
The product of its digits is 540, while the sum is 24.
The square root of 13125912 is about 3622.9700523190. The cubic root of 13125912 is about 235.8901624282.
The spelling of 13125912 in words is "thirteen million, one hundred twenty-five thousand, nine hundred twelve".
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