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311434113013 = 438681834311
BaseRepresentation
bin1001000100000101110…
…10110110111111110101
31002202212101020011002021
410202002322312333311
520100304113104023
6355023145513141
731333425165652
oct4420272667765
91082771204067
10311434113013
1111009548a681
12504367a27b1
13234a297c95a
1411105936c29
15817b3ee35d
hex4882eb6ff5

311434113013 has 8 divisors (see below), whose sum is σ = 318713858496. Its totient is φ = 304156053600.

The previous prime is 311434112989. The next prime is 311434113017. The reversal of 311434113013 is 310311434113.

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

It is a cyclic number.

It is not a de Polignac number, because 311434113013 - 221 = 311432015861 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 (311434113017) 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, 43873 + ... + 790438.

It is an arithmetic number, because the mean of its divisors is an integer number (39839232312).

Almost surely, 2311434113013 is an apocalyptic number.

It is an amenable number.

311434113013 is a deficient number, since it is larger than the sum of its proper divisors (7279745483).

311434113013 is an equidigital number, since it uses as much as digits as its factorization.

311434113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843035.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 311434113013 its reverse (310311434113), we get a palindrome (621745547126).

The spelling of 311434113013 in words is "three hundred eleven billion, four hundred thirty-four million, one hundred thirteen thousand, thirteen".

Divisors: 1 43 8681 373283 834311 35875373 7242653791 311434113013