Base | Representation |
---|---|
bin | 10111101111111111… |
… | …00000000011001011 |
3 | 1012220121102012220111 |
4 | 23313333200003023 |
5 | 202103120201131 |
6 | 5505120335151 |
7 | 630653625520 |
oct | 136777400313 |
9 | 35817365814 |
10 | 12750553291 |
11 | 545339a453 |
12 | 257a1744b7 |
13 | 12827c40b8 |
14 | 88d595147 |
15 | 4e95cbab1 |
hex | 2f7fe00cb |
12750553291 has 16 divisors (see below), whose sum is σ = 14759317440. Its totient is φ = 10789171200.
The previous prime is 12750553271. The next prime is 12750553331. The reversal of 12750553291 is 19235505721.
It is a cyclic number.
It is not a de Polignac number, because 12750553291 - 25 = 12750553259 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12750553241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248865 + ... + 295693.
It is an arithmetic number, because the mean of its divisors is an integer number (922457340).
Almost surely, 212750553291 is an apocalyptic number.
12750553291 is a deficient number, since it is larger than the sum of its proper divisors (2008764149).
12750553291 is an equidigital number, since it uses as much as digits as its factorization.
12750553291 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47334.
The product of its (nonzero) digits is 94500, while the sum is 40.
The spelling of 12750553291 in words is "twelve billion, seven hundred fifty million, five hundred fifty-three thousand, two hundred ninety-one".
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