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313220130233 = 1631921595891
BaseRepresentation
bin1001000111011010101…
…11111110010110111001
31002221110211221020010012
410203231113332112321
520112433323131413
6355520310231305
731425613115153
oct4435527762671
91087424836105
10313220130233
1111092166386a
1250854955535
13236c89b538a
1411234c0dad3
1582330e47a8
hex48ed5fe5b9

313220130233 has 4 divisors (see below), whose sum is σ = 315141726288. Its totient is φ = 311298534180.

The previous prime is 313220130229. The next prime is 313220130269. The reversal of 313220130233 is 332031022313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332031022313 = 2911449345597.

It is a cyclic number.

It is not a de Polignac number, because 313220130233 - 22 = 313220130229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313220130199 and 313220130208.

It is not an unprimeable number, because it can be changed into a prime (313220130203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960797783 + ... + 960798108.

It is an arithmetic number, because the mean of its divisors is an integer number (78785431572).

Almost surely, 2313220130233 is an apocalyptic number.

It is an amenable number.

313220130233 is a deficient number, since it is larger than the sum of its proper divisors (1921596055).

313220130233 is a wasteful number, since it uses less digits than its factorization.

313220130233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921596054.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 313220130233 its reverse (332031022313), we get a palindrome (645251152546).

The spelling of 313220130233 in words is "three hundred thirteen billion, two hundred twenty million, one hundred thirty thousand, two hundred thirty-three".

Divisors: 1 163 1921595891 313220130233