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13823933 = 19969467
BaseRepresentation
bin110100101110…
…111110111101
3222000022212112
4310232332331
512014331213
61212143405
7225334004
oct64567675
928008775
1013823933
117892142
124767b65
132b30256
141b9bc3b
151330ea8
hexd2efbd

13823933 has 4 divisors (see below), whose sum is σ = 13893600. Its totient is φ = 13754268.

The previous prime is 13823921. The next prime is 13823947. The reversal of 13823933 is 33932831.

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 13823933 - 212 = 13819837 is a prime.

It is a super-2 number, since 2×138239332 = 382202247176978, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13823933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13823333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34535 + ... + 34932.

It is an arithmetic number, because the mean of its divisors is an integer number (3473400).

Almost surely, 213823933 is an apocalyptic number.

It is an amenable number.

13823933 is a deficient number, since it is larger than the sum of its proper divisors (69667).

13823933 is an equidigital number, since it uses as much as digits as its factorization.

13823933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69666.

The product of its digits is 11664, while the sum is 32.

The square root of 13823933 is about 3718.0550022828. The cubic root of 13823933 is about 239.9996122679. Note that the first 3 decimals are identical.

The spelling of 13823933 in words is "thirteen million, eight hundred twenty-three thousand, nine hundred thirty-three".

Divisors: 1 199 69467 13823933