Base | Representation |
---|---|
bin | 10110100110001010… |
… | …00100010000011101 |
3 | 1011022110002121210210 |
4 | 23103011010100131 |
5 | 144321100132300 |
6 | 5323434523033 |
7 | 606423653220 |
oct | 132305042035 |
9 | 34273077723 |
10 | 12131255325 |
11 | 5165860752 |
12 | 2426896479 |
13 | 11b43cc7b7 |
14 | 8312275b7 |
15 | 4b004b050 |
hex | 2d314441d |
12131255325 has 48 divisors (see below), whose sum is σ = 22937309696. Its totient is φ = 5542084800.
The previous prime is 12131255303. The next prime is 12131255341. The reversal of 12131255325 is 52355213121.
It is not a de Polignac number, because 12131255325 - 25 = 12131255293 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12131255292 and 12131255301.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 897870 + ... + 911280.
Almost surely, 212131255325 is an apocalyptic number.
12131255325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12131255325 is a deficient number, since it is larger than the sum of its proper divisors (10806054371).
12131255325 is a wasteful number, since it uses less digits than its factorization.
12131255325 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15154 (or 15149 counting only the distinct ones).
The product of its digits is 9000, while the sum is 30.
Adding to 12131255325 its reverse (52355213121), we get a palindrome (64486468446).
The spelling of 12131255325 in words is "twelve billion, one hundred thirty-one million, two hundred fifty-five thousand, three hundred twenty-five".
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