Base | Representation |
---|---|
bin | 10111010011111011… |
… | …10100000110011000 |
3 | 1012022012121120011220 |
4 | 23221331310012120 |
5 | 201112344330404 |
6 | 5425512452040 |
7 | 622065462216 |
oct | 135175640630 |
9 | 35265546156 |
10 | 12515230104 |
11 | 5342580683 |
12 | 25133aa020 |
13 | 1245b1cc00 |
14 | 86a219cb6 |
15 | 4d3ae64d9 |
hex | 2e9f74198 |
12515230104 has 48 divisors (see below), whose sum is σ = 33879997800. Its totient is φ = 3850838784.
The previous prime is 12515230081. The next prime is 12515230129. The reversal of 12515230104 is 40103251521.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1538749 + ... + 1546860.
Almost surely, 212515230104 is an apocalyptic number.
It is an amenable number.
12515230104 is an abundant number, since it is smaller than the sum of its proper divisors (21364767696).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12515230104 is a wasteful number, since it uses less digits than its factorization.
12515230104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3085644 (or 3085627 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 24.
Adding to 12515230104 its reverse (40103251521), we get a palindrome (52618481625).
The spelling of 12515230104 in words is "twelve billion, five hundred fifteen million, two hundred thirty thousand, one hundred four".
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