Base | Representation |
---|---|
bin | 11000000010101001… |
… | …00101110011101101 |
3 | 1020022111221102212011 |
4 | 30001110211303231 |
5 | 202413202424340 |
6 | 5532431241221 |
7 | 634564225435 |
oct | 140124456355 |
9 | 36274842764 |
10 | 12907076845 |
11 | 5523787963 |
12 | 2602679211 |
13 | 12a90683a0 |
14 | 8a629b2c5 |
15 | 5081e90ea |
hex | 301525ced |
12907076845 has 8 divisors (see below), whose sum is σ = 16679914776. Its totient is φ = 9531379776.
The previous prime is 12907076837. The next prime is 12907076851. The reversal of 12907076845 is 54867070921.
It can be written as a sum of positive squares in 4 ways, for example, as 168117156 + 12738959689 = 12966^2 + 112867^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12907076845 - 23 = 12907076837 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99285142 + ... + 99285271.
It is an arithmetic number, because the mean of its divisors is an integer number (2084989347).
Almost surely, 212907076845 is an apocalyptic number.
It is an amenable number.
12907076845 is a deficient number, since it is larger than the sum of its proper divisors (3772837931).
12907076845 is a wasteful number, since it uses less digits than its factorization.
12907076845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 198570431.
The product of its (nonzero) digits is 846720, while the sum is 49.
The spelling of 12907076845 in words is "twelve billion, nine hundred seven million, seventy-six thousand, eight hundred forty-five".
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