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13244653 = 19697087
BaseRepresentation
bin110010100001…
…100011101101
3220220220020201
4302201203231
511342312103
61151513501
7220402102
oct62414355
926826221
1013244653
1175269a4
124528891
132989696
141a8aaa9
15126951d
hexca18ed

13244653 has 4 divisors (see below), whose sum is σ = 13941760. Its totient is φ = 12547548.

The previous prime is 13244641. The next prime is 13244669. The reversal of 13244653 is 35644231.

13244653 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 13244653 - 29 = 13244141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13244633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348525 + ... + 348562.

It is an arithmetic number, because the mean of its divisors is an integer number (3485440).

Almost surely, 213244653 is an apocalyptic number.

It is an amenable number.

13244653 is a deficient number, since it is larger than the sum of its proper divisors (697107).

13244653 is an equidigital number, since it uses as much as digits as its factorization.

13244653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697106.

The product of its digits is 8640, while the sum is 28.

The square root of 13244653 is about 3639.3204035919. The cubic root of 13244653 is about 236.5993396619.

Adding to 13244653 its reverse (35644231), we get a palindrome (48888884).

The spelling of 13244653 in words is "thirteen million, two hundred forty-four thousand, six hundred fifty-three".

Divisors: 1 19 697087 13244653