Base | Representation |
---|---|
bin | 110000011000… |
… | …011110001001 |
3 | 212212101000010 |
4 | 300120132021 |
5 | 11221330040 |
6 | 1131502133 |
7 | 212543046 |
oct | 60303611 |
9 | 25771003 |
10 | 12683145 |
11 | 7183042 |
12 | 42b7949 |
13 | 2820c27 |
14 | 19821cd |
15 | 11a7e80 |
hex | c18789 |
12683145 has 24 divisors (see below), whose sum is σ = 20841408. Its totient is φ = 6586240.
The previous prime is 12683137. The next prime is 12683183. The reversal of 12683145 is 54138621.
It is not a de Polignac number, because 12683145 - 23 = 12683137 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24964 + ... + 25466.
It is an arithmetic number, because the mean of its divisors is an integer number (868392).
Almost surely, 212683145 is an apocalyptic number.
12683145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12683145 is a deficient number, since it is larger than the sum of its proper divisors (8158263).
12683145 is an equidigital number, since it uses as much as digits as its factorization.
12683145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 593 (or 552 counting only the distinct ones).
The product of its digits is 5760, while the sum is 30.
The square root of 12683145 is about 3561.3403375696. The cubic root of 12683145 is about 233.2073957585.
The spelling of 12683145 in words is "twelve million, six hundred eighty-three thousand, one hundred forty-five".
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