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12303313 = 111118483
BaseRepresentation
bin101110111011…
…101111010001
3212011001222021
4232323233101
511122201223
61115411441
7206401501
oct56735721
925131867
1012303313
116a43730
124153b81
13271a089
1418c3a01
15113065d
hexbbbbd1

12303313 has 4 divisors (see below), whose sum is σ = 13421808. Its totient is φ = 11184820.

The previous prime is 12303301. The next prime is 12303323. The reversal of 12303313 is 31330321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12303313 - 25 = 12303281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303323) 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, 559231 + ... + 559252.

It is an arithmetic number, because the mean of its divisors is an integer number (3355452).

Almost surely, 212303313 is an apocalyptic number.

It is an amenable number.

12303313 is a deficient number, since it is larger than the sum of its proper divisors (1118495).

12303313 is a wasteful number, since it uses less digits than its factorization.

12303313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118494.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 12303313 is about 3507.6078743212. The cubic root of 12303313 is about 230.8557472215.

Adding to 12303313 its reverse (31330321), we get a palindrome (43633634).

The spelling of 12303313 in words is "twelve million, three hundred three thousand, three hundred thirteen".

Divisors: 1 11 1118483 12303313