Base | Representation |
---|---|
bin | 10111101010100011… |
… | …01000000100110101 |
3 | 1012210102122111122121 |
4 | 23311101220010311 |
5 | 202004433114414 |
6 | 5500411355541 |
7 | 626561326633 |
oct | 136521500465 |
9 | 35712574577 |
10 | 12704973109 |
11 | 542a698384 |
12 | 2566a52bb1 |
13 | 127622568a |
14 | 8874cc353 |
15 | 4e55c6724 |
hex | 2f5468135 |
12704973109 has 8 divisors (see below), whose sum is σ = 13146048000. Its totient is φ = 12264096432.
The previous prime is 12704973107. The next prime is 12704973121. The reversal of 12704973109 is 90137940721.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12704973109 - 21 = 12704973107 is a prime.
It is a super-2 number, since 2×127049731092 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12704973107) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87312 + ... + 181750.
It is an arithmetic number, because the mean of its divisors is an integer number (1643256000).
Almost surely, 212704973109 is an apocalyptic number.
It is an amenable number.
12704973109 is a deficient number, since it is larger than the sum of its proper divisors (441074891).
12704973109 is an equidigital number, since it uses as much as digits as its factorization.
12704973109 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99107.
The product of its (nonzero) digits is 95256, while the sum is 43.
The spelling of 12704973109 in words is "twelve billion, seven hundred four million, nine hundred seventy-three thousand, one hundred nine".
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