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13124433 = 37624973
BaseRepresentation
bin110010000100…
…001101010001
3220200210100010
4302010031101
511324440213
61145145133
7216361440
oct62041521
926623303
1013124433
117454643
12448b1a9
132946a4a
141a58d57
151243ac3
hexc84351

13124433 has 8 divisors (see below), whose sum is σ = 19999168. Its totient is φ = 7499664.

The previous prime is 13124431. The next prime is 13124437. The reversal of 13124433 is 33442131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13124433 - 21 = 13124431 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 624973 = 13124433 / (1 + 3 + 1 + 2 + 4 + 4 + 3 + 3).

It is not an unprimeable number, because it can be changed into a prime (13124431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312466 + ... + 312507.

It is an arithmetic number, because the mean of its divisors is an integer number (2499896).

Almost surely, 213124433 is an apocalyptic number.

It is an amenable number.

13124433 is a deficient number, since it is larger than the sum of its proper divisors (6874735).

13124433 is an equidigital number, since it uses as much as digits as its factorization.

13124433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624983.

The product of its digits is 864, while the sum is 21.

The square root of 13124433 is about 3622.7659322678. The cubic root of 13124433 is about 235.8813022272.

Adding to 13124433 its reverse (33442131), we get a palindrome (46566564).

The spelling of 13124433 in words is "thirteen million, one hundred twenty-four thousand, four hundred thirty-three".

Divisors: 1 3 7 21 624973 1874919 4374811 13124433