Base | Representation |
---|---|
bin | 10110100010111011… |
… | …01011010101101111 |
3 | 1011020120002122121220 |
4 | 23101131223111233 |
5 | 144242130334211 |
6 | 5321025554423 |
7 | 605644412100 |
oct | 132135532557 |
9 | 34216078556 |
10 | 12104152431 |
11 | 5151529968 |
12 | 24197a5a13 |
13 | 11ab900397 |
14 | 82b7b03a7 |
15 | 4ac995806 |
hex | 2d176b56f |
12104152431 has 48 divisors (see below), whose sum is σ = 20045862144. Its totient is φ = 6461997696.
The previous prime is 12104152421. The next prime is 12104152433. The reversal of 12104152431 is 13425140121.
It is not a de Polignac number, because 12104152431 - 29 = 12104151919 is a prime.
It is a super-2 number, since 2×121041524312 (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 (12104152433) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103755 + ... + 187011.
It is an arithmetic number, because the mean of its divisors is an integer number (417622128).
Almost surely, 212104152431 is an apocalyptic number.
12104152431 is a deficient number, since it is larger than the sum of its proper divisors (7941709713).
12104152431 is a wasteful number, since it uses less digits than its factorization.
12104152431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83340 (or 83333 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 12104152431 its reverse (13425140121), we get a palindrome (25529292552).
The spelling of 12104152431 in words is "twelve billion, one hundred four million, one hundred fifty-two thousand, four hundred thirty-one".
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