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313142343 = 3104380781
BaseRepresentation
bin10010101010100…
…010110001000111
3210211020021112120
4102222202301013
51120131023333
651023421023
710521444303
oct2252426107
9724207476
10313142343
11150840528
1288a54773
134cb4ca37
142d834d03
151c757db3
hex12aa2c47

313142343 has 4 divisors (see below), whose sum is σ = 417523128. Its totient is φ = 208761560.

The previous prime is 313142339. The next prime is 313142353. The reversal of 313142343 is 343241313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343241313 = 3114413771.

It is a cyclic number.

It is not a de Polignac number, because 313142343 - 22 = 313142339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313142353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52190388 + ... + 52190393.

It is an arithmetic number, because the mean of its divisors is an integer number (104380782).

Almost surely, 2313142343 is an apocalyptic number.

313142343 is a deficient number, since it is larger than the sum of its proper divisors (104380785).

313142343 is a wasteful number, since it uses less digits than its factorization.

313142343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104380784.

The product of its digits is 2592, while the sum is 24.

The square root of 313142343 is about 17695.8284067178. The cubic root of 313142343 is about 679.0690425143.

Adding to 313142343 its reverse (343241313), we get a palindrome (656383656).

The spelling of 313142343 in words is "three hundred thirteen million, one hundred forty-two thousand, three hundred forty-three".

Divisors: 1 3 104380781 313142343