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12281683 = 19961717
BaseRepresentation
bin101110110110…
…011101010011
3212002222022011
4232312131103
511121003213
61115123351
7206251441
oct56663523
925088264
1012281683
116a29457
124143557
13271028b
1418b9b91
15112903d
hexbb6753

12281683 has 4 divisors (see below), whose sum is σ = 12343600. Its totient is φ = 12219768.

The previous prime is 12281671. The next prime is 12281693. The reversal of 12281683 is 38618221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12281683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12281603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30660 + ... + 31057.

It is an arithmetic number, because the mean of its divisors is an integer number (3085900).

Almost surely, 212281683 is an apocalyptic number.

12281683 is a deficient number, since it is larger than the sum of its proper divisors (61917).

12281683 is an equidigital number, since it uses as much as digits as its factorization.

12281683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61916.

The product of its digits is 4608, while the sum is 31.

The square root of 12281683 is about 3504.5232200686. The cubic root of 12281683 is about 230.7203815435.

The spelling of 12281683 in words is "twelve million, two hundred eighty-one thousand, six hundred eighty-three".

Divisors: 1 199 61717 12281683