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313130343 = 3438832749
BaseRepresentation
bin10010101010011…
…111110101100111
3210211012200002010
4102222133311213
51120130132333
651023245303
710521364311
oct2252376547
9724180063
10313130343
11150832509
1288a49833
134cb47436
142d8307b1
151c754563
hex12a9fd67

313130343 has 16 divisors (see below), whose sum is σ = 427856000. Its totient is φ = 203593824.

The previous prime is 313130339. The next prime is 313130353. The reversal of 313130343 is 343031313.

It is not a de Polignac number, because 313130343 - 22 = 313130339 is a prime.

It is a super-2 number, since 2×3131303432 = 196101223414595298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313130333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112533 + ... + 115281.

It is an arithmetic number, because the mean of its divisors is an integer number (26741000).

Almost surely, 2313130343 is an apocalyptic number.

313130343 is a deficient number, since it is larger than the sum of its proper divisors (114725657).

313130343 is a wasteful number, since it uses less digits than its factorization.

313130343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 313130343 is about 17695.4893405071. The cubic root of 313130343 is about 679.0603681497.

Adding to 313130343 its reverse (343031313), we get a palindrome (656161656).

The spelling of 313130343 in words is "three hundred thirteen million, one hundred thirty thousand, three hundred forty-three".

Divisors: 1 3 43 129 883 2649 2749 8247 37969 113907 118207 354621 2427367 7282101 104376781 313130343