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13131202313 = 54142715683
BaseRepresentation
bin11000011101010111…
…00011111100001001
31020220010200012012102
430032223203330021
5203343041433223
610010555123145
7643255243445
oct141653437411
936803605172
1013131202313
115629248719
1226657434b5
13131361b7c8
148c7d5d825
1551cc1b928
hex30eae3f09

13131202313 has 8 divisors (see below), whose sum is σ = 13160870016. Its totient is φ = 13101555600.

The previous prime is 13131202223. The next prime is 13131202321. The reversal of 13131202313 is 31320213131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13131202313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131202333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307770 + ... + 2313452.

It is an arithmetic number, because the mean of its divisors is an integer number (1645108752).

Almost surely, 213131202313 is an apocalyptic number.

It is an amenable number.

13131202313 is a deficient number, since it is larger than the sum of its proper divisors (29667703).

13131202313 is an equidigital number, since it uses as much as digits as its factorization.

13131202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10495.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13131202313 its reverse (31320213131), we get a palindrome (44451415444).

The spelling of 13131202313 in words is "thirteen billion, one hundred thirty-one million, two hundred two thousand, three hundred thirteen".

Divisors: 1 541 4271 5683 2310611 3074503 24272093 13131202313