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245544013 = 11132516841
BaseRepresentation
bin11101010001010…
…11010001001101
3122010000221001201
432220223101031
51000324402023
640210505501
76041042521
oct1650532115
9563027051
10245544013
1111666a940
126a295291
133bb42420
1424879d81
1516853bad
hexea2b44d

245544013 has 16 divisors (see below), whose sum is σ = 289662912. Its totient is φ = 205200000.

The previous prime is 245544001. The next prime is 245544031. The reversal of 245544013 is 310445542.

245544013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 245544013 - 225 = 211989581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245544043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32473 + ... + 39313.

It is an arithmetic number, because the mean of its divisors is an integer number (18103932).

Almost surely, 2245544013 is an apocalyptic number.

It is an amenable number.

245544013 is a deficient number, since it is larger than the sum of its proper divisors (44118899).

245544013 is a wasteful number, since it uses less digits than its factorization.

245544013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 245544013 is about 15669.8440643167. The cubic root of 245544013 is about 626.1952704286.

Adding to 245544013 its reverse (310445542), we get a palindrome (555989555).

The spelling of 245544013 in words is "two hundred forty-five million, five hundred forty-four thousand, thirteen".

Divisors: 1 11 13 143 251 2761 3263 6841 35893 75251 88933 978263 1717091 18888001 22322183 245544013