Base | Representation |
---|---|
bin | 10111100001110010… |
… | …10011000011010000 |
3 | 1012121022101000012201 |
4 | 23300321103003100 |
5 | 201332130033142 |
6 | 5445224332544 |
7 | 625006602520 |
oct | 136071230320 |
9 | 35538330181 |
10 | 12631486672 |
11 | 53a2165992 |
12 | 2546314154 |
13 | 1263c35c8c |
14 | 87b83d680 |
15 | 4dde0cab7 |
hex | 2f0e530d0 |
12631486672 has 320 divisors, whose sum is σ = 32041123840. Its totient is φ = 4702924800.
The previous prime is 12631486669. The next prime is 12631486717. The reversal of 12631486672 is 27668413621.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173034028 + ... + 173034100.
It is an arithmetic number, because the mean of its divisors is an integer number (100128512).
Almost surely, 212631486672 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12631486672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16020561920).
12631486672 is an abundant number, since it is smaller than the sum of its proper divisors (19409637168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12631486672 is a wasteful number, since it uses less digits than its factorization.
12631486672 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 242 (or 236 counting only the distinct ones).
The product of its digits is 580608, while the sum is 46.
The spelling of 12631486672 in words is "twelve billion, six hundred thirty-one million, four hundred eighty-six thousand, six hundred seventy-two".
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