Base | Representation |
---|---|
bin | 10110100000111111… |
… | …11100010010001011 |
3 | 1011012102122110000010 |
4 | 23100133330102023 |
5 | 144224010001112 |
6 | 5315251043003 |
7 | 605360016600 |
oct | 132037742213 |
9 | 34172573003 |
10 | 12087968907 |
11 | 5143385a53 |
12 | 24142a0463 |
13 | 11a8455131 |
14 | 82959a6a7 |
15 | 4ab34a63c |
hex | 2d07fc48b |
12087968907 has 12 divisors (see below), whose sum is σ = 18748686696. Its totient is φ = 6907410720.
The previous prime is 12087968903. The next prime is 12087968953. The reversal of 12087968907 is 70986978021.
It is not a de Polignac number, because 12087968907 - 22 = 12087968903 is a prime.
It is a super-2 number, since 2×120879689072 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12087968903) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41115394 + ... + 41115687.
It is an arithmetic number, because the mean of its divisors is an integer number (1562390558).
Almost surely, 212087968907 is an apocalyptic number.
12087968907 is a deficient number, since it is larger than the sum of its proper divisors (6660717789).
12087968907 is an equidigital number, since it uses as much as digits as its factorization.
12087968907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82231098 (or 82231091 counting only the distinct ones).
The product of its (nonzero) digits is 3048192, while the sum is 57.
The spelling of 12087968907 in words is "twelve billion, eighty-seven million, nine hundred sixty-eight thousand, nine hundred seven".
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