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313442233 = 1324110941
BaseRepresentation
bin10010101011101…
…011111110111001
3210211210111220121
4102223223332321
51120220122413
651034053241
710524133516
oct2253537671
9724714817
10313442233
11150a25875
1288b7a221
134cc263a0
142d8b230d
151c7b6b8d
hex12aebfb9

313442233 has 4 divisors (see below), whose sum is σ = 337553188. Its totient is φ = 289331280.

The previous prime is 313442231. The next prime is 313442273. The reversal of 313442233 is 332244313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332244313 = 1399237487.

It can be written as a sum of positive squares in 2 ways, for example, as 29452329 + 283989904 = 5427^2 + 16852^2 .

It is a cyclic number.

It is not a de Polignac number, because 313442233 - 21 = 313442231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313442198 and 313442207.

It is not an unprimeable number, because it can be changed into a prime (313442231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12055458 + ... + 12055483.

It is an arithmetic number, because the mean of its divisors is an integer number (84388297).

Almost surely, 2313442233 is an apocalyptic number.

It is an amenable number.

313442233 is a deficient number, since it is larger than the sum of its proper divisors (24110955).

313442233 is a wasteful number, since it uses less digits than its factorization.

313442233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24110954.

The product of its digits is 5184, while the sum is 25.

The square root of 313442233 is about 17704.2998449529. The cubic root of 313442233 is about 679.2857501821.

Adding to 313442233 its reverse (332244313), we get a palindrome (645686546).

The spelling of 313442233 in words is "three hundred thirteen million, four hundred forty-two thousand, two hundred thirty-three".

Divisors: 1 13 24110941 313442233