Base | Representation |
---|---|
bin | 10111111110011001… |
… | …11001100011101100 |
3 | 1020020001000021001020 |
4 | 23333030321203230 |
5 | 202330101144111 |
6 | 5525121014140 |
7 | 633652666005 |
oct | 137714714354 |
9 | 36201007036 |
10 | 12871506156 |
11 | 55056a20a3 |
12 | 25b2784350 |
13 | 12a1892942 |
14 | 8a167c1ac |
15 | 50501e906 |
hex | 2ff3398ec |
12871506156 has 48 divisors (see below), whose sum is σ = 31044292608. Its totient is φ = 4146480000.
The previous prime is 12871506127. The next prime is 12871506161. The reversal of 12871506156 is 65160517821.
It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256336 + ... + 302408.
It is an arithmetic number, because the mean of its divisors is an integer number (646756096).
Almost surely, 212871506156 is an apocalyptic number.
It is an amenable number.
12871506156 is an abundant number, since it is smaller than the sum of its proper divisors (18172786452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12871506156 is a wasteful number, since it uses less digits than its factorization.
12871506156 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 46862 (or 46860 counting only the distinct ones).
The product of its (nonzero) digits is 100800, while the sum is 42.
The spelling of 12871506156 in words is "twelve billion, eight hundred seventy-one million, five hundred six thousand, one hundred fifty-six".
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