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13024581 = 34341527
BaseRepresentation
bin110001101011…
…110101000101
3220111201100220
4301223311011
511313241311
61143054553
7215464353
oct61536505
926451326
1013024581
117396619
124441459
13291046b
141a307d3
151224206
hexc6bd45

13024581 has 4 divisors (see below), whose sum is σ = 17366112. Its totient is φ = 8683052.

The previous prime is 13024573. The next prime is 13024589. The reversal of 13024581 is 18542031.

13024581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (13024573) and next prime (13024589).

It is a cyclic number.

It is not a de Polignac number, because 13024581 - 23 = 13024573 is a prime.

It is a super-2 number, since 2×130245812 = 339279420451122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13024589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2170761 + ... + 2170766.

It is an arithmetic number, because the mean of its divisors is an integer number (4341528).

Almost surely, 213024581 is an apocalyptic number.

It is an amenable number.

13024581 is a deficient number, since it is larger than the sum of its proper divisors (4341531).

13024581 is an equidigital number, since it uses as much as digits as its factorization.

13024581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341530.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13024581 is about 3608.9584370009. The cubic root of 13024581 is about 235.2815758670.

The spelling of 13024581 in words is "thirteen million, twenty-four thousand, five hundred eighty-one".

Divisors: 1 3 4341527 13024581