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311303113 = 1122839091
BaseRepresentation
bin10010100011100…
…001101111001001
3210200202211120221
4102203201233021
51114143144423
650520150041
710500014152
oct2243415711
9720684527
10311303113
1114a7a4700
1288308321
134c657834
142d4b6929
151c4e2e5d
hex128e1bc9

311303113 has 12 divisors (see below), whose sum is σ = 343423024. Its totient is φ = 281971800.

The previous prime is 311303093. The next prime is 311303129.

311303113 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2k-311303113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311306113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29698 + ... + 38788.

Almost surely, 2311303113 is an apocalyptic number.

It is an amenable number.

311303113 is a deficient number, since it is larger than the sum of its proper divisors (32119911).

311303113 is a wasteful number, since it uses less digits than its factorization.

311303113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 311303113 is about 17643.7839762337. The cubic root of 311303113 is about 677.7369354160.

It can be divided in two parts, 31130 and 3113, that added together give a palindrome (34243).

The spelling of 311303113 in words is "three hundred eleven million, three hundred three thousand, one hundred thirteen".

Divisors: 1 11 121 283 3113 9091 34243 100001 1100011 2572753 28300283 311303113