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311322103313 = 1346351723227
BaseRepresentation
bin1001000011111000011…
…11100100111000010001
31002202120120110110122212
410201330033210320101
520100041424301223
6355004105041505
731330565134034
oct4417417447021
91082516413585
10311322103313
11110038236081
1250405186295
13234856c2920
14110d4adb01b
158171676278
hex487c3e4e11

311322103313 has 8 divisors (see below), whose sum is σ = 335994089088. Its totient is φ = 286753564944.

The previous prime is 311322103307. The next prime is 311322103361. The reversal of 311322103313 is 313301223113.

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 311322103313 - 218 = 311321841169 is a prime.

It is a super-2 number, since 2×3113221033132 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311322103613) 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, 25855595 + ... + 25867632.

It is an arithmetic number, because the mean of its divisors is an integer number (41999261136).

Almost surely, 2311322103313 is an apocalyptic number.

It is an amenable number.

311322103313 is a deficient number, since it is larger than the sum of its proper divisors (24671985775).

311322103313 is a wasteful number, since it uses less digits than its factorization.

311322103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51723703.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311322103313 its reverse (313301223113), we get a palindrome (624623326426).

The spelling of 311322103313 in words is "three hundred eleven billion, three hundred twenty-two million, one hundred three thousand, three hundred thirteen".

Divisors: 1 13 463 6019 51723227 672401951 23947854101 311322103313