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13204775 = 52528191
BaseRepresentation
bin110010010111…
…110100100111
3220211212112202
4302113310213
511340023100
61151005115
7220144613
oct62276447
926755482
1013204775
1174a9a41
12450979b
13297449c
141a7a343
15125c7d5
hexc97d27

13204775 has 6 divisors (see below), whose sum is σ = 16373952. Its totient is φ = 10563800.

The previous prime is 13204759. The next prime is 13204777. The reversal of 13204775 is 57740231.

It is not a de Polignac number, because 13204775 - 24 = 13204759 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 (13204777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 264071 + ... + 264120.

It is an arithmetic number, because the mean of its divisors is an integer number (2728992).

Almost surely, 213204775 is an apocalyptic number.

13204775 is a deficient number, since it is larger than the sum of its proper divisors (3169177).

13204775 is an equidigital number, since it uses as much as digits as its factorization.

13204775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528201 (or 528196 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 13204775 is about 3633.8375032464. The cubic root of 13204775 is about 236.3616439002.

The spelling of 13204775 in words is "thirteen million, two hundred four thousand, seven hundred seventy-five".

Divisors: 1 5 25 528191 2640955 13204775