Base | Representation |
---|---|
bin | 10110111010111000… |
… | …00101011100001001 |
3 | 1011202120010220020202 |
4 | 23131130011130021 |
5 | 200200043433031 |
6 | 5353004101545 |
7 | 613634204165 |
oct | 133534053411 |
9 | 34676126222 |
10 | 12305061641 |
11 | 5244982a34 |
12 | 2474b348b5 |
13 | 1211415482 |
14 | 84a34bca5 |
15 | 4c042e2cb |
hex | 2dd705709 |
12305061641 has 4 divisors (see below), whose sum is σ = 12331638912. Its totient is φ = 12278484372.
The previous prime is 12305061631. The next prime is 12305061667. The reversal of 12305061641 is 14616050321.
It is a happy number.
12305061641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 12305061641 - 210 = 12305060617 is a prime.
It is a super-2 number, since 2×123050616412 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12305061631) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13287941 + ... + 13288866.
It is an arithmetic number, because the mean of its divisors is an integer number (3082909728).
Almost surely, 212305061641 is an apocalyptic number.
It is an amenable number.
12305061641 is a deficient number, since it is larger than the sum of its proper divisors (26577271).
12305061641 is an equidigital number, since it uses as much as digits as its factorization.
12305061641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26577270.
The product of its (nonzero) digits is 4320, while the sum is 29.
The spelling of 12305061641 in words is "twelve billion, three hundred five million, sixty-one thousand, six hundred forty-one".
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