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13225307 = 107123601
BaseRepresentation
bin110010011100…
…110101011011
3220212220201012
4302130311123
511341202212
61151244135
7220261514
oct62346533
926786635
1013225307
117513407
12451964b
132980934
141a83a0b
151263922
hexc9cd5b

13225307 has 4 divisors (see below), whose sum is σ = 13349016. Its totient is φ = 13101600.

The previous prime is 13225301. The next prime is 13225343. The reversal of 13225307 is 70352231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13225307 - 24 = 13225291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13225301) 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, 61694 + ... + 61907.

It is an arithmetic number, because the mean of its divisors is an integer number (3337254).

Almost surely, 213225307 is an apocalyptic number.

13225307 is a deficient number, since it is larger than the sum of its proper divisors (123709).

13225307 is a wasteful number, since it uses less digits than its factorization.

13225307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123708.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13225307 is about 3636.6615184809. The cubic root of 13225307 is about 236.4840860763.

Adding to 13225307 its reverse (70352231), we get a palindrome (83577538).

The spelling of 13225307 in words is "thirteen million, two hundred twenty-five thousand, three hundred seven".

Divisors: 1 107 123601 13225307