Base | Representation |
---|---|
bin | 10111010010011100… |
… | …01101100011000111 |
3 | 1012021100010120122211 |
4 | 23221032031203013 |
5 | 201101201021211 |
6 | 5424345204251 |
7 | 621554430232 |
oct | 135116154307 |
9 | 35240116584 |
10 | 12502751431 |
11 | 5336528225 |
12 | 250b190687 |
13 | 1243371091 |
14 | 8686cc419 |
15 | 4d297de21 |
hex | 2e938d8c7 |
12502751431 has 4 divisors (see below), whose sum is σ = 13160791000. Its totient is φ = 11844711864.
The previous prime is 12502751413. The next prime is 12502751441. The reversal of 12502751431 is 13415720521.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 12502751431 - 227 = 12368533703 is a prime.
It is a super-2 number, since 2×125027514312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12502751393 and 12502751402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12502751441) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329019756 + ... + 329019793.
It is an arithmetic number, because the mean of its divisors is an integer number (3290197750).
Almost surely, 212502751431 is an apocalyptic number.
12502751431 is a deficient number, since it is larger than the sum of its proper divisors (658039569).
12502751431 is an equidigital number, since it uses as much as digits as its factorization.
12502751431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 658039568.
The product of its (nonzero) digits is 8400, while the sum is 31.
The spelling of 12502751431 in words is "twelve billion, five hundred two million, seven hundred fifty-one thousand, four hundred thirty-one".
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