Base | Representation |
---|---|
bin | 101110111110… |
… | …010010111001 |
3 | 212011121100010 |
4 | 232332102321 |
5 | 11123020120 |
6 | 1115532133 |
7 | 206444151 |
oct | 56762271 |
9 | 25147303 |
10 | 12313785 |
11 | 6a50590 |
12 | 415a049 |
13 | 2721a83 |
14 | 18c7761 |
15 | 11337e0 |
hex | bbe4b9 |
12313785 has 32 divisors (see below), whose sum is σ = 22084992. Its totient is φ = 5806080.
The previous prime is 12313783. The next prime is 12313787. The reversal of 12313785 is 58731321.
It is an interprime number because it is at equal distance from previous prime (12313783) and next prime (12313787).
It is not a de Polignac number, because 12313785 - 21 = 12313783 is a prime.
It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12313783) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5097 + ... + 7113.
It is an arithmetic number, because the mean of its divisors is an integer number (690156).
Almost surely, 212313785 is an apocalyptic number.
12313785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12313785 is a deficient number, since it is larger than the sum of its proper divisors (9771207).
12313785 is a wasteful number, since it uses less digits than its factorization.
12313785 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2073.
The product of its digits is 5040, while the sum is 30.
The square root of 12313785 is about 3509.1003120458. The cubic root of 12313785 is about 230.9212264903.
The spelling of 12313785 in words is "twelve million, three hundred thirteen thousand, seven hundred eighty-five".
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