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312424431 = 3119467407
BaseRepresentation
bin10010100111110…
…011011111101111
3210202212210202020
4102213303133233
51114440040211
651000201223
710512364254
oct2247633757
9722783666
10312424431
111503a0110
1288769213
134c95b037
142d6c942b
151c665306
hex129f37ef

312424431 has 8 divisors (see below), whose sum is σ = 454435584. Its totient is φ = 189348120.

The previous prime is 312424403. The next prime is 312424439. The reversal of 312424431 is 134424213.

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

It is not a de Polignac number, because 312424431 - 210 = 312423407 is a prime.

It is a super-2 number, since 2×3124244312 = 195218050171347522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312424439) 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, 4733671 + ... + 4733736.

It is an arithmetic number, because the mean of its divisors is an integer number (56804448).

Almost surely, 2312424431 is an apocalyptic number.

312424431 is a deficient number, since it is larger than the sum of its proper divisors (142011153).

312424431 is a wasteful number, since it uses less digits than its factorization.

312424431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9467421.

The product of its digits is 2304, while the sum is 24.

The square root of 312424431 is about 17675.5319863364. The cubic root of 312424431 is about 678.5496995190.

Adding to 312424431 its reverse (134424213), we get a palindrome (446848644).

The spelling of 312424431 in words is "three hundred twelve million, four hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 3 11 33 9467407 28402221 104141477 312424431