Base | Representation |
---|---|
bin | 1011011111010001100010… |
… | …1010110011110010001111 |
3 | 1122201121011201021221000210 |
4 | 2313310120222303302033 |
5 | 3123430124122133004 |
6 | 42511004240053503 |
7 | 2442424400202324 |
oct | 267643052636217 |
9 | 48647151257023 |
10 | 12631912692879 |
11 | 4030189446947 |
12 | 1500196004293 |
13 | 708251a6b1cc |
14 | 31956031ab4b |
15 | 16d8b9781089 |
hex | b7d18ab3c8f |
12631912692879 has 16 divisors (see below), whose sum is σ = 17385969060864. Its totient is φ = 8149569187200.
The previous prime is 12631912692863. The next prime is 12631912692881. The reversal of 12631912692879 is 97829621913621.
It is not a de Polignac number, because 12631912692879 - 24 = 12631912692863 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12631912692779) 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, 18839959 + ... + 19498919.
It is an arithmetic number, because the mean of its divisors is an integer number (1086623066304).
Almost surely, 212631912692879 is an apocalyptic number.
12631912692879 is a deficient number, since it is larger than the sum of its proper divisors (4754056367985).
12631912692879 is a wasteful number, since it uses less digits than its factorization.
12631912692879 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 865118.
The product of its digits is 35271936, while the sum is 66.
The spelling of 12631912692879 in words is "twelve trillion, six hundred thirty-one billion, nine hundred twelve million, six hundred ninety-two thousand, eight hundred seventy-nine".
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