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13254213 = 37631153
BaseRepresentation
bin110010100011…
…111001000101
3220221101100210
4302203321011
511343113323
61152030033
7220442010
oct62437105
926841323
1013254213
1175330a5
124532319
132990b3b
141a90377
15126c293
hexca3e45

13254213 has 8 divisors (see below), whose sum is σ = 20196928. Its totient is φ = 7573824.

The previous prime is 13254181. The next prime is 13254221. The reversal of 13254213 is 31245231.

13254213 is digitally balanced in base 2, base 3, base 4 and base 8, because in such bases 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 13254213 - 25 = 13254181 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: 631153 = 13254213 / (1 + 3 + 2 + 5 + 4 + 2 + 1 + 3).

It is a Duffinian number.

13254213 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 13254213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13254013) 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, 315556 + ... + 315597.

It is an arithmetic number, because the mean of its divisors is an integer number (2524616).

Almost surely, 213254213 is an apocalyptic number.

It is an amenable number.

13254213 is a deficient number, since it is larger than the sum of its proper divisors (6942715).

13254213 is an equidigital number, since it uses as much as digits as its factorization.

13254213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631163.

The product of its digits is 720, while the sum is 21.

The square root of 13254213 is about 3640.6335987023. The cubic root of 13254213 is about 236.6562518285.

Adding to 13254213 its reverse (31245231), we get a palindrome (44499444).

It can be divided in two parts, 132 and 54213, that added together give a palindrome (54345).

The spelling of 13254213 in words is "thirteen million, two hundred fifty-four thousand, two hundred thirteen".

Divisors: 1 3 7 21 631153 1893459 4418071 13254213