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12308133 = 34102711
BaseRepresentation
bin101110111100…
…111010100101
3212011022120210
4232330322211
511122330013
61115450033
7206421525
oct56747245
925138523
1012308133
116a47312
124156919
13271c326
1418c5685
151131cc3
hexbbcea5

12308133 has 4 divisors (see below), whose sum is σ = 16410848. Its totient is φ = 8205420.

The previous prime is 12308123. The next prime is 12308141. The reversal of 12308133 is 33180321.

It is a happy number.

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 not a de Polignac number, because 12308133 - 24 = 12308117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308113) 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, 2051353 + ... + 2051358.

It is an arithmetic number, because the mean of its divisors is an integer number (4102712).

Almost surely, 212308133 is an apocalyptic number.

It is an amenable number.

12308133 is a deficient number, since it is larger than the sum of its proper divisors (4102715).

12308133 is an equidigital number, since it uses as much as digits as its factorization.

12308133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102714.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12308133 is about 3508.2948849833. The cubic root of 12308133 is about 230.8858903064.

Adding to 12308133 its reverse (33180321), we get a palindrome (45488454).

The spelling of 12308133 in words is "twelve million, three hundred eight thousand, one hundred thirty-three".

Divisors: 1 3 4102711 12308133