Base | Representation |
---|---|
bin | 10111110100011100… |
… | …01010110010011001 |
3 | 1020000012210022101020 |
4 | 23322032022302121 |
5 | 202142203442133 |
6 | 5512534113053 |
7 | 631616543130 |
oct | 137216126231 |
9 | 36005708336 |
10 | 12787952793 |
11 | 5472514230 |
12 | 258a7ab789 |
13 | 128a48a095 |
14 | 89452c917 |
15 | 4eca180b3 |
hex | 2fa38ac99 |
12787952793 has 64 divisors (see below), whose sum is σ = 22897459200. Its totient is φ = 6147005760.
The previous prime is 12787952773. The next prime is 12787952797. The reversal of 12787952793 is 39725978721.
It is not a de Polignac number, because 12787952793 - 213 = 12787944601 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12787952797) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154848 + ... + 222606.
It is an arithmetic number, because the mean of its divisors is an integer number (357772800).
Almost surely, 212787952793 is an apocalyptic number.
It is an amenable number.
12787952793 is a deficient number, since it is larger than the sum of its proper divisors (10109506407).
12787952793 is a wasteful number, since it uses less digits than its factorization.
12787952793 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67842.
The product of its digits is 13335840, while the sum is 60.
The spelling of 12787952793 in words is "twelve billion, seven hundred eighty-seven million, nine hundred fifty-two thousand, seven hundred ninety-three".
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