Base | Representation |
---|---|
bin | 11000100110100111… |
… | …00001010011100100 |
3 | 1021002112122212012210 |
4 | 30103103201103210 |
5 | 204022422124043 |
6 | 10022410043420 |
7 | 645216554415 |
oct | 142323412344 |
9 | 37075585183 |
10 | 13208786148 |
11 | 5669019598 |
12 | 2687719570 |
13 | 13267141bc |
14 | 8d439780c |
15 | 524944633 |
hex | 3134e14e4 |
13208786148 has 48 divisors (see below), whose sum is σ = 31353686336. Its totient is φ = 4327188480.
The previous prime is 13208786147. The next prime is 13208786153. The reversal of 13208786148 is 84168780231.
It is a junction number, because it is equal to n+sod(n) for n = 13208786097 and 13208786106.
It is not an unprimeable number, because it can be changed into a prime (13208786147) 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, 221268 + ... + 274548.
Almost surely, 213208786148 is an apocalyptic number.
It is an amenable number.
13208786148 is an abundant number, since it is smaller than the sum of its proper divisors (18144900188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13208786148 is a wasteful number, since it uses less digits than its factorization.
13208786148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53644 (or 53642 counting only the distinct ones).
The product of its (nonzero) digits is 516096, while the sum is 48.
The spelling of 13208786148 in words is "thirteen billion, two hundred eight million, seven hundred eighty-six thousand, one hundred forty-eight".
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