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311124424 = 231312792339
BaseRepresentation
bin10010100010110…
…110000111001000
3210200102202110211
4102202312013020
51114121440144
650512250504
710465341202
oct2242660710
9720382424
10311124424
1114a692426
1288240a34
134c5c43c0
142d46b772
151c4aa034
hex128b61c8

311124424 has 32 divisors (see below), whose sum is σ = 628992000. Its totient is φ = 143422272.

The previous prime is 311124419. The next prime is 311124431. The reversal of 311124424 is 424421113.

It is a happy number.

311124424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 311124395 and 311124404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131847 + ... + 134185.

It is an arithmetic number, because the mean of its divisors is an integer number (19656000).

Almost surely, 2311124424 is an apocalyptic number.

It is an amenable number.

311124424 is an abundant number, since it is smaller than the sum of its proper divisors (317867576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311124424 is a wasteful number, since it uses less digits than its factorization.

311124424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637 (or 3633 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 311124424 is about 17638.7194546543. The cubic root of 311124424 is about 677.6072361947.

Adding to 311124424 its reverse (424421113), we get a palindrome (735545537).

The spelling of 311124424 in words is "three hundred eleven million, one hundred twenty-four thousand, four hundred twenty-four".

Divisors: 1 2 4 8 13 26 52 104 1279 2339 2558 4678 5116 9356 10232 16627 18712 30407 33254 60814 66508 121628 133016 243256 2991581 5983162 11966324 23932648 38890553 77781106 155562212 311124424