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3131201213313 = 36329164912899
BaseRepresentation
bin101101100100001010001…
…000101101001110000001
3102002100011210111110221220
4231210022020231032001
5402300200002311223
610354242020505253
7442136041112055
oct55441210551601
912070153443856
103131201213313
11aa7a31500188
12426a20b4b229
1319936a532234
14ab79db29c65
15566b2c826e3
hex2d90a22d381

3131201213313 has 8 divisors (see below), whose sum is σ = 4175594628000. Its totient is φ = 2087137637088.

The previous prime is 3131201213293. The next prime is 3131201213323. The reversal of 3131201213313 is 3133121021313.

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

It is not a de Polignac number, because 3131201213313 - 28 = 3131201213057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131201213323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82437463 + ... + 82475436.

It is an arithmetic number, because the mean of its divisors is an integer number (521949328500).

Almost surely, 23131201213313 is an apocalyptic number.

It is an amenable number.

3131201213313 is a deficient number, since it is larger than the sum of its proper divisors (1044393414687).

3131201213313 is a wasteful number, since it uses less digits than its factorization.

3131201213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164919231.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 3131201213313 its reverse (3133121021313), we get a palindrome (6264322234626).

The spelling of 3131201213313 in words is "three trillion, one hundred thirty-one billion, two hundred one million, two hundred thirteen thousand, three hundred thirteen".

Divisors: 1 3 6329 18987 164912899 494738697 1043733737771 3131201213313