Base | Representation |
---|---|
bin | 10110110001111111… |
… | …10111110011110011 |
3 | 1011120100221122222110 |
4 | 23120333313303303 |
5 | 200022010310130 |
6 | 5341343140403 |
7 | 612041006223 |
oct | 133077676363 |
9 | 34510848873 |
10 | 12230556915 |
11 | 5206915485 |
12 | 2453ba4703 |
13 | 11cbb5a435 |
14 | 8404b6083 |
15 | 4b8b13ab0 |
hex | 2d8ff7cf3 |
12230556915 has 32 divisors (see below), whose sum is σ = 19944576000. Its totient is φ = 6398663040.
The previous prime is 12230556911. The next prime is 12230556917. The reversal of 12230556915 is 51965503221.
It is not a de Polignac number, because 12230556915 - 22 = 12230556911 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12230556911) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183081 + ... + 240789.
It is an arithmetic number, because the mean of its divisors is an integer number (623268000).
Almost surely, 212230556915 is an apocalyptic number.
12230556915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12230556915 is a deficient number, since it is larger than the sum of its proper divisors (7714019085).
12230556915 is a wasteful number, since it uses less digits than its factorization.
12230556915 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57987.
The product of its (nonzero) digits is 81000, while the sum is 39.
The spelling of 12230556915 in words is "twelve billion, two hundred thirty million, five hundred fifty-six thousand, nine hundred fifteen".
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