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13204550 = 252264091
BaseRepresentation
bin110010010111…
…110001000110
3220211212020102
4302113301012
511340021200
61151004102
7220144142
oct62276106
926755212
1013204550
1174a9857
124509632
132974358
141a7a222
15125c6d5
hexc97c46

13204550 has 12 divisors (see below), whose sum is σ = 24560556. Its totient is φ = 5281800.

The previous prime is 13204537. The next prime is 13204559. The reversal of 13204550 is 5540231.

13204550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204559) 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, 131996 + ... + 132095.

It is an arithmetic number, because the mean of its divisors is an integer number (2046713).

Almost surely, 213204550 is an apocalyptic number.

13204550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13204550 is a deficient number, since it is larger than the sum of its proper divisors (11356006).

13204550 is a wasteful number, since it uses less digits than its factorization.

13204550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264103 (or 264098 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 13204550 is about 3633.8065441077. The cubic root of 13204550 is about 236.3603014143.

Adding to 13204550 its reverse (5540231), we get a palindrome (18744781).

The spelling of 13204550 in words is "thirteen million, two hundred four thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 264091 528182 1320455 2640910 6602275 13204550