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311424307 = 1916390753
BaseRepresentation
bin10010100011111…
…111010100110011
3210200222222211121
4102203333110303
51114211034212
650522523111
710501030405
oct2243772463
9720888747
10311424307
1114a877767
1288366497
134c69aa4c
142d508b75
151c518d07
hex128ff533

311424307 has 4 divisors (see below), whose sum is σ = 327815080. Its totient is φ = 295033536.

The previous prime is 311424283. The next prime is 311424317. The reversal of 311424307 is 703424113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311424307 - 223 = 303035699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311424317) 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 3 ways as a sum of consecutive naturals, for example, 8195358 + ... + 8195395.

It is an arithmetic number, because the mean of its divisors is an integer number (81953770).

Almost surely, 2311424307 is an apocalyptic number.

311424307 is a deficient number, since it is larger than the sum of its proper divisors (16390773).

311424307 is a wasteful number, since it uses less digits than its factorization.

311424307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16390772.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 311424307 is about 17647.2181093792. The cubic root of 311424307 is about 677.8248743518.

The spelling of 311424307 in words is "three hundred eleven million, four hundred twenty-four thousand, three hundred seven".

Divisors: 1 19 16390753 311424307