Base | Representation |
---|---|
bin | 10111010101110010… |
… | …11111100111001101 |
3 | 1012100022001101201011 |
4 | 23222321133213031 |
5 | 201130400443304 |
6 | 5431232045221 |
7 | 622345451524 |
oct | 135271374715 |
9 | 35308041634 |
10 | 12530874829 |
11 | 5350396800 |
12 | 2518693811 |
13 | 1249139b45 |
14 | 86c32d4bb |
15 | 4d5186c04 |
hex | 2eae5f9cd |
12530874829 has 6 divisors (see below), whose sum is σ = 13773606350. Its totient is φ = 11391704280.
The previous prime is 12530874827. The next prime is 12530874833. The reversal of 12530874829 is 92847803521.
It can be written as a sum of positive squares in only one way, i.e., 12428905225 + 101969604 = 111485^2 + 10098^2 .
It is not a de Polignac number, because 12530874829 - 21 = 12530874827 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12530874821) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51780354 + ... + 51780595.
Almost surely, 212530874829 is an apocalyptic number.
It is an amenable number.
12530874829 is a deficient number, since it is larger than the sum of its proper divisors (1242731521).
12530874829 is a wasteful number, since it uses less digits than its factorization.
12530874829 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 103560971 (or 103560960 counting only the distinct ones).
The product of its (nonzero) digits is 967680, while the sum is 49.
The spelling of 12530874829 in words is "twelve billion, five hundred thirty million, eight hundred seventy-four thousand, eight hundred twenty-nine".
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