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12682243 = 74144189
BaseRepresentation
bin110000011000…
…010000000011
3212212022202201
4300120100003
511221312433
61131454031
7212540320
oct60302003
925768681
1012682243
1171823a2
1242b7317
1328206b2
141981b47
1511a7a7d
hexc18403

12682243 has 8 divisors (see below), whose sum is σ = 14847840. Its totient is φ = 10605120.

The previous prime is 12682237. The next prime is 12682247. The reversal of 12682243 is 34228621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12682243 is a prime.

It is a super-2 number, since 2×126822432 = 321678575022098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12682247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21808 + ... + 22381.

It is an arithmetic number, because the mean of its divisors is an integer number (1855980).

Almost surely, 212682243 is an apocalyptic number.

12682243 is a deficient number, since it is larger than the sum of its proper divisors (2165597).

12682243 is an equidigital number, since it uses as much as digits as its factorization.

12682243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44237.

The product of its digits is 4608, while the sum is 28.

The square root of 12682243 is about 3561.2136976037. The cubic root of 12682243 is about 233.2018672123.

It can be divided in two parts, 126 and 82243, that added together give a square (82369 = 2872).

The spelling of 12682243 in words is "twelve million, six hundred eighty-two thousand, two hundred forty-three".

Divisors: 1 7 41 287 44189 309323 1811749 12682243