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13203134430 = 235440104481
BaseRepresentation
bin11000100101111011…
…11101011111011110
31021002011000201111220
430102331331133132
5204020000300210
610022044554210
7645120535203
oct142275753736
937064021456
1013203134430
115665909352
122685852966
1313254b58a5
148d3725caa
155241c9c70
hex312f7d7de

13203134430 has 16 divisors (see below), whose sum is σ = 31687522704. Its totient is φ = 3520835840.

The previous prime is 13203134389. The next prime is 13203134431. The reversal of 13203134430 is 3443130231.

It is a self number, because there is not a number n which added to its sum of digits gives 13203134430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203134431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220052211 + ... + 220052270.

It is an arithmetic number, because the mean of its divisors is an integer number (1980470169).

Almost surely, 213203134430 is an apocalyptic number.

13203134430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13203134430 is an abundant number, since it is smaller than the sum of its proper divisors (18484388274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13203134430 is a wasteful number, since it uses less digits than its factorization.

13203134430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440104491.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13203134430 its reverse (3443130231), we get a palindrome (16646264661).

The spelling of 13203134430 in words is "thirteen billion, two hundred three million, one hundred thirty-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 440104481 880208962 1320313443 2200522405 2640626886 4401044810 6601567215 13203134430