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13204430 = 251969497
BaseRepresentation
bin110010010111…
…101111001110
3220211212001222
4302113233032
511340020210
61151003342
7220143611
oct62275716
926755058
1013204430
1174a9758
124509552
132974295
141a7a178
15125c655
hexc97bce

13204430 has 16 divisors (see below), whose sum is σ = 25019280. Its totient is φ = 5003712.

The previous prime is 13204421. The next prime is 13204447. The reversal of 13204430 is 3440231.

It is a junction number, because it is equal to n+sod(n) for n = 13204399 and 13204408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34559 + ... + 34938.

It is an arithmetic number, because the mean of its divisors is an integer number (1563705).

Almost surely, 213204430 is an apocalyptic number.

13204430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13204430 is a deficient number, since it is larger than the sum of its proper divisors (11814850).

13204430 is a wasteful number, since it uses less digits than its factorization.

13204430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69523.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13204430 is about 3633.7900324592. The cubic root of 13204430 is about 236.3595854156.

Adding to 13204430 its reverse (3440231), we get a palindrome (16644661).

The spelling of 13204430 in words is "thirteen million, two hundred four thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 69497 138994 347485 694970 1320443 2640886 6602215 13204430