Base | Representation |
---|---|
bin | 10111000100010111… |
… | …10111101011000111 |
3 | 1011222002222210110122 |
4 | 23202023313223013 |
5 | 200330440301111 |
6 | 5404531012155 |
7 | 615622121300 |
oct | 134213675307 |
9 | 34862883418 |
10 | 12384697031 |
11 | 5285925203 |
12 | 249773a05b |
13 | 1224a788c5 |
14 | 856b5b7a7 |
15 | 4c740ecdb |
hex | 2e22f7ac7 |
12384697031 has 12 divisors (see below), whose sum is σ = 14546565072. Its totient is φ = 10512387648.
The previous prime is 12384697027. The next prime is 12384697069. The reversal of 12384697031 is 13079648321.
It is not a de Polignac number, because 12384697031 - 22 = 12384697027 is a prime.
It is a super-2 number, since 2×123846970312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12384691031) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1221890 + ... + 1231983.
It is an arithmetic number, because the mean of its divisors is an integer number (1212213756).
Almost surely, 212384697031 is an apocalyptic number.
12384697031 is a deficient number, since it is larger than the sum of its proper divisors (2161868041).
12384697031 is a wasteful number, since it uses less digits than its factorization.
12384697031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2453990 (or 2453983 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 44.
The spelling of 12384697031 in words is "twelve billion, three hundred eighty-four million, six hundred ninety-seven thousand, thirty-one".
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