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13325155 = 52665031
BaseRepresentation
bin110010110101…
…001101100011
3221001222200021
4302311031203
511402401110
61153334311
7221155564
oct62651543
927058607
1013325155
117581428
124567397
1329b720c
141aac16b
1512832da
hexcb5363

13325155 has 4 divisors (see below), whose sum is σ = 15990192. Its totient is φ = 10660120.

The previous prime is 13325149. The next prime is 13325159. The reversal of 13325155 is 55152331.

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

It is a de Polignac number, because none of the positive numbers 2k-13325155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13325159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1332511 + ... + 1332520.

It is an arithmetic number, because the mean of its divisors is an integer number (3997548).

Almost surely, 213325155 is an apocalyptic number.

13325155 is a deficient number, since it is larger than the sum of its proper divisors (2665037).

13325155 is an equidigital number, since it uses as much as digits as its factorization.

13325155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665036.

The product of its digits is 2250, while the sum is 25.

The square root of 13325155 is about 3650.3636805118. The cubic root of 13325155 is about 237.0777279515.

Adding to 13325155 its reverse (55152331), we get a palindrome (68477486).

The spelling of 13325155 in words is "thirteen million, three hundred twenty-five thousand, one hundred fifty-five".

Divisors: 1 5 2665031 13325155