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13244245 = 57378407
BaseRepresentation
bin110010100001…
…011101010101
3220220212200121
4302201131111
511342303440
61151511541
7220400650
oct62413525
926825617
1013244245
117526663
1245285b1
132989441
141a8a897
15126934a
hexca1755

13244245 has 8 divisors (see below), whose sum is σ = 18163584. Its totient is φ = 9081744.

The previous prime is 13244243. The next prime is 13244281. The reversal of 13244245 is 54244231.

It is a happy number.

13244245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13244245 - 21 = 13244243 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 (13244243) 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, 189169 + ... + 189238.

It is an arithmetic number, because the mean of its divisors is an integer number (2270448).

Almost surely, 213244245 is an apocalyptic number.

It is an amenable number.

13244245 is a deficient number, since it is larger than the sum of its proper divisors (4919339).

13244245 is an equidigital number, since it uses as much as digits as its factorization.

13244245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378419.

The product of its digits is 3840, while the sum is 25.

The square root of 13244245 is about 3639.2643487386. The cubic root of 13244245 is about 236.5969101652.

Adding to 13244245 its reverse (54244231), we get a palindrome (67488476).

The spelling of 13244245 in words is "thirteen million, two hundred forty-four thousand, two hundred forty-five".

Divisors: 1 5 7 35 378407 1892035 2648849 13244245