Base | Representation |
---|---|
bin | 10110100001001000… |
… | …10111111111010001 |
3 | 1011012111211111001011 |
4 | 23100210113333101 |
5 | 144224304142321 |
6 | 5315332010521 |
7 | 605402626525 |
oct | 132044277721 |
9 | 34174744034 |
10 | 12089130961 |
11 | 5143aaa026 |
12 | 2414760a41 |
13 | 11a877103b |
14 | 8297bdd85 |
15 | 4ab4c9ae1 |
hex | 2d0917fd1 |
12089130961 has 2 divisors, whose sum is σ = 12089130962. Its totient is φ = 12089130960.
The previous prime is 12089130871. The next prime is 12089130979. The reversal of 12089130961 is 16903198021.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8273721600 + 3815409361 = 90960^2 + 61769^2 .
It is an emirp because it is prime and its reverse (16903198021) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12089130961 - 223 = 12080742353 is a prime.
It is a super-2 number, since 2×120891309612 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12089131961) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6044565480 + 6044565481.
It is an arithmetic number, because the mean of its divisors is an integer number (6044565481).
Almost surely, 212089130961 is an apocalyptic number.
It is an amenable number.
12089130961 is a deficient number, since it is larger than the sum of its proper divisors (1).
12089130961 is an equidigital number, since it uses as much as digits as its factorization.
12089130961 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 23328, while the sum is 40.
The spelling of 12089130961 in words is "twelve billion, eighty-nine million, one hundred thirty thousand, nine hundred sixty-one".
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