Base | Representation |
---|---|
bin | 1011101001010000100110… |
… | …0001110011001011111011 |
3 | 1200022222221221212011120200 |
4 | 2322110021201303023323 |
5 | 3134232440041132411 |
6 | 43121454353453243 |
7 | 2461006415642055 |
oct | 272241141631373 |
9 | 50288857764520 |
10 | 12803457364731 |
11 | 4096a08995920 |
12 | 152948bb71223 |
13 | 71b48ca286b7 |
14 | 3239951a48d5 |
15 | 1730a99ebe56 |
hex | ba5098732fb |
12803457364731 has 72 divisors (see below), whose sum is σ = 20851898818608. Its totient is φ = 7507576627200.
The previous prime is 12803457364723. The next prime is 12803457364741. The reversal of 12803457364731 is 13746375430821.
12803457364731 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 3 + 4 + 573 + 64 + 7 + 3 + 1 = 666.
It is not a de Polignac number, because 12803457364731 - 23 = 12803457364723 is a prime.
It is a super-2 number, since 2×128034573647312 (a number of 27 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12803457364741) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 475015551 + ... + 475042503.
It is an arithmetic number, because the mean of its divisors is an integer number (289609705814).
Almost surely, 212803457364731 is an apocalyptic number.
12803457364731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
12803457364731 is a deficient number, since it is larger than the sum of its proper divisors (8048441453877).
12803457364731 is a wasteful number, since it uses less digits than its factorization.
12803457364731 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32025 (or 31991 counting only the distinct ones).
The product of its (nonzero) digits is 10160640, while the sum is 54.
The spelling of 12803457364731 in words is "twelve trillion, eight hundred three billion, four hundred fifty-seven million, three hundred sixty-four thousand, seven hundred thirty-one".
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