Search a number
-
+
13225415 = 571792111
BaseRepresentation
bin110010011100…
…110111000111
3220212220212012
4302130313013
511341203130
61151244435
7220262030
oct62346707
926786765
1013225415
1175134a5
12451971b
1329809b8
141a83a87
151263995
hexc9cdc7

13225415 has 16 divisors (see below), whose sum is σ = 18247680. Its totient is φ = 9013920.

The previous prime is 13225409. The next prime is 13225423. The reversal of 13225415 is 51452231.

It is not a de Polignac number, because 13225415 - 26 = 13225351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5210 + ... + 7320.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 213225415 is an apocalyptic number.

13225415 is a deficient number, since it is larger than the sum of its proper divisors (5022265).

13225415 is a wasteful number, since it uses less digits than its factorization.

13225415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302.

The product of its digits is 1200, while the sum is 23.

The square root of 13225415 is about 3636.6763672342. The cubic root of 13225415 is about 236.4847297970.

Adding to 13225415 its reverse (51452231), we get a palindrome (64677646).

The spelling of 13225415 in words is "thirteen million, two hundred twenty-five thousand, four hundred fifteen".

Divisors: 1 5 7 35 179 895 1253 2111 6265 10555 14777 73885 377869 1889345 2645083 13225415