Base | Representation |
---|---|
bin | 1011100101111000010010… |
… | …1000011100001000001011 |
3 | 1200010110002100210222201000 |
4 | 2321132010220130020023 |
5 | 3132310031122120330 |
6 | 43035053000230043 |
7 | 2453552503232325 |
oct | 271360450341013 |
9 | 50113070728630 |
10 | 12745393160715 |
11 | 4074322192a56 |
12 | 151a18646b323 |
13 | 715b68356227 |
14 | 320c47856615 |
15 | 17180c1c8560 |
hex | b9784a1c20b |
12745393160715 has 32 divisors (see below), whose sum is σ = 22670613480960. Its totient is φ = 6793901993952.
The previous prime is 12745393160711. The next prime is 12745393160737. The reversal of 12745393160715 is 51706139354721.
12745393160715 is a `hidden beast` number, since 1 + 2 + 7 + 4 + 539 + 31 + 6 + 0 + 71 + 5 = 666.
It is not a de Polignac number, because 12745393160715 - 22 = 12745393160711 is a prime.
It is a super-2 number, since 2×127453931607152 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12745393160711) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25031919 + ... + 25536008.
It is an arithmetic number, because the mean of its divisors is an integer number (708456671280).
Almost surely, 212745393160715 is an apocalyptic number.
12745393160715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
12745393160715 is a deficient number, since it is larger than the sum of its proper divisors (9925220320245).
12745393160715 is a wasteful number, since it uses less digits than its factorization.
12745393160715 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50569808 (or 50569802 counting only the distinct ones).
The product of its (nonzero) digits is 4762800, while the sum is 54.
The spelling of 12745393160715 in words is "twelve trillion, seven hundred forty-five billion, three hundred ninety-three million, one hundred sixty thousand, seven hundred fifteen".
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