Base | Representation |
---|---|
bin | 110001010000… |
… | …000101111111 |
3 | 220021221112021 |
4 | 301100011333 |
5 | 11301122400 |
6 | 1140421011 |
7 | 214512220 |
oct | 61200577 |
9 | 26257467 |
10 | 12910975 |
11 | 7319230 |
12 | 43a7767 |
13 | 28a083c |
14 | 1a01247 |
15 | 120071a |
hex | c5017f |
12910975 has 48 divisors (see below), whose sum is σ = 21070080. Its totient is φ = 7603200.
The previous prime is 12910957. The next prime is 12910979. The reversal of 12910975 is 57901921.
12910975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12910975 - 25 = 12910943 is a prime.
It is a super-3 number, since 3×129109753 (a number of 22 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12910975.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12910979) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36399 + ... + 36751.
It is an arithmetic number, because the mean of its divisors is an integer number (438960).
Almost surely, 212910975 is an apocalyptic number.
12910975 is a deficient number, since it is larger than the sum of its proper divisors (8159105).
12910975 is a wasteful number, since it uses less digits than its factorization.
12910975 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 400 (or 395 counting only the distinct ones).
The product of its (nonzero) digits is 5670, while the sum is 34.
The square root of 12910975 is about 3593.1845207281. The cubic root of 12910975 is about 234.5955015227.
The spelling of 12910975 in words is "twelve million, nine hundred ten thousand, nine hundred seventy-five".
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