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13120333213 = 131009256401
BaseRepresentation
bin11000011100000100…
…00110010110011101
31020212101012222121011
430032002012112131
5203332301130323
610005530135221
7643063664221
oct141602062635
936771188534
1013120333213
1156230a4599
122661b81511
1313112b44a0
148c6730781
1551bcc120d
hex30e08659d

13120333213 has 4 divisors (see below), whose sum is σ = 14129589628. Its totient is φ = 12111076800.

The previous prime is 13120333139. The next prime is 13120333231. The reversal of 13120333213 is 31233302131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1114090884 + 12006242329 = 33378^2 + 109573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13120333213 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 (13120333273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504628188 + ... + 504628213.

It is an arithmetic number, because the mean of its divisors is an integer number (3532397407).

Almost surely, 213120333213 is an apocalyptic number.

13120333213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13120333213 is a deficient number, since it is larger than the sum of its proper divisors (1009256415).

13120333213 is a wasteful number, since it uses less digits than its factorization.

13120333213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009256414.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13120333213 its reverse (31233302131), we get a palindrome (44353635344).

The spelling of 13120333213 in words is "thirteen billion, one hundred twenty million, three hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 13 1009256401 13120333213