Base | Representation |
---|---|
bin | 10110100110001011… |
… | …11011101101011011 |
3 | 1011022110112011101011 |
4 | 23103011323231123 |
5 | 144321124414314 |
6 | 5323443434351 |
7 | 606425620345 |
oct | 132305735533 |
9 | 34273464334 |
10 | 12131482459 |
11 | 51659a6368 |
12 | 24269859b7 |
13 | 11b447bcb5 |
14 | 831286295 |
15 | 4b00934c4 |
hex | 2d317bb5b |
12131482459 has 4 divisors (see below), whose sum is σ = 12133531080. Its totient is φ = 12129433840.
The previous prime is 12131482427. The next prime is 12131482469. The reversal of 12131482459 is 95428413121.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95428413121 = 19 ⋅5022548059.
It is a cyclic number.
It is not a de Polignac number, because 12131482459 - 25 = 12131482427 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12131482469) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015402 + ... + 1027279.
It is an arithmetic number, because the mean of its divisors is an integer number (3033382770).
Almost surely, 212131482459 is an apocalyptic number.
12131482459 is a deficient number, since it is larger than the sum of its proper divisors (2048621).
12131482459 is an equidigital number, since it uses as much as digits as its factorization.
12131482459 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2048620.
The product of its digits is 69120, while the sum is 40.
The spelling of 12131482459 in words is "twelve billion, one hundred thirty-one million, four hundred eighty-two thousand, four hundred fifty-nine".
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