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313143352 = 2339142919
BaseRepresentation
bin10010101010100…
…011000000111000
3210211020022220221
4102222203000320
51120131041402
651023425424
710521450244
oct2252430070
9724208827
10313143352
11150841265
1288a55274
134cb50332
142d835424
151c758337
hex12aa3038

313143352 has 8 divisors (see below), whose sum is σ = 587143800. Its totient is φ = 156571672.

The previous prime is 313143323. The next prime is 313143359. The reversal of 313143352 is 253341313.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313143359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19571452 + ... + 19571467.

It is an arithmetic number, because the mean of its divisors is an integer number (73392975).

Almost surely, 2313143352 is an apocalyptic number.

It is an amenable number.

313143352 is a deficient number, since it is larger than the sum of its proper divisors (274000448).

313143352 is a wasteful number, since it uses less digits than its factorization.

313143352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39142925 (or 39142921 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 313143352 is about 17695.8569162389. The cubic root of 313143352 is about 679.0697718737.

Adding to 313143352 its reverse (253341313), we get a palindrome (566484665).

The spelling of 313143352 in words is "three hundred thirteen million, one hundred forty-three thousand, three hundred fifty-two".

Divisors: 1 2 4 8 39142919 78285838 156571676 313143352