Base | Representation |
---|---|
bin | 1011100111111001011101… |
… | …0011011110111110100000 |
3 | 1200020202120210012111120222 |
4 | 2321332113103132332200 |
5 | 3133342033420012312 |
6 | 43103025323222212 |
7 | 2456220645044240 |
oct | 271762723367640 |
9 | 50222523174528 |
10 | 12780066172832 |
11 | 4087aa51a7172 |
12 | 1524a42377968 |
13 | 7192028c014a |
14 | 3227b6765b20 |
15 | 17268b1b8672 |
hex | b9f974defa0 |
12780066172832 has 48 divisors (see below), whose sum is σ = 30268577787840. Its totient is φ = 5188899045888.
The previous prime is 12780066172831. The next prime is 12780066172843. The reversal of 12780066172832 is 23827166008721.
It is not an unprimeable number, because it can be changed into a prime (12780066172831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501413293 + ... + 1501421804.
It is an arithmetic number, because the mean of its divisors is an integer number (630595370580).
Almost surely, 212780066172832 is an apocalyptic number.
It is an amenable number.
12780066172832 is an abundant number, since it is smaller than the sum of its proper divisors (17488511615008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12780066172832 is a wasteful number, since it uses less digits than its factorization.
12780066172832 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3002835133 (or 3002835125 counting only the distinct ones).
The product of its (nonzero) digits is 2709504, while the sum is 53.
The spelling of 12780066172832 in words is "twelve trillion, seven hundred eighty billion, sixty-six million, one hundred seventy-two thousand, eight hundred thirty-two".
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