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13120433 = 129110163
BaseRepresentation
bin110010000011…
…001110110001
3220200120211222
4302003032301
511324323213
61145114425
7216343664
oct62031661
926616758
1013120433
117451637
124488a15
132944c91
141a576db
151242808
hexc833b1

13120433 has 4 divisors (see below), whose sum is σ = 13131888. Its totient is φ = 13108980.

The previous prime is 13120427. The next prime is 13120483. The reversal of 13120433 is 33402131.

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 a cyclic number.

It is not a de Polignac number, because 13120433 - 222 = 8926129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13120423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791 + ... + 6372.

It is an arithmetic number, because the mean of its divisors is an integer number (3282972).

Almost surely, 213120433 is an apocalyptic number.

It is an amenable number.

13120433 is a deficient number, since it is larger than the sum of its proper divisors (11455).

13120433 is a wasteful number, since it uses less digits than its factorization.

13120433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11454.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13120433 is about 3622.2138258253. The cubic root of 13120433 is about 235.8573362121.

Adding to 13120433 its reverse (33402131), we get a palindrome (46522564).

The spelling of 13120433 in words is "thirteen million, one hundred twenty thousand, four hundred thirty-three".

Divisors: 1 1291 10163 13120433