Base | Representation |
---|---|
bin | 110010000101… |
… | …000011001110 |
3 | 220200222002000 |
4 | 302011003032 |
5 | 11330043021 |
6 | 1145213130 |
7 | 216404502 |
oct | 62050316 |
9 | 26628060 |
10 | 13127886 |
11 | 74571a2 |
12 | 44911a6 |
13 | 29484a5 |
14 | 1a5a302 |
15 | 1244b26 |
hex | c850ce |
13127886 has 16 divisors (see below), whose sum is σ = 29173200. Its totient is φ = 4375944.
The previous prime is 13127843. The next prime is 13127887. The reversal of 13127886 is 68872131.
It is a self number, because there is not a number n which added to its sum of digits gives 13127886.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13127887) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121501 + ... + 121608.
It is an arithmetic number, because the mean of its divisors is an integer number (1823325).
Almost surely, 213127886 is an apocalyptic number.
13127886 is an abundant number, since it is smaller than the sum of its proper divisors (16045314).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13127886 is a wasteful number, since it uses less digits than its factorization.
13127886 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 243120 (or 243114 counting only the distinct ones).
The product of its digits is 16128, while the sum is 36.
The square root of 13127886 is about 3623.2424704952. The cubic root of 13127886 is about 235.9019869739.
The spelling of 13127886 in words is "thirteen million, one hundred twenty-seven thousand, eight hundred eighty-six".
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