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313212002321 = 1512239301577
BaseRepresentation
bin1001000111011001110…
…00111110000000010001
31002221110021122021201102
410203230320332000101
520112424233033241
6355515420114145
731425454043501
oct4435470760021
91087407567642
10313212002321
11110918012189
1250852095955
13236c70ca96a
1411233ad5a01
15823253b39b
hex48ece3e011

313212002321 has 8 divisors (see below), whose sum is σ = 316700127744. Its totient is φ = 309742480800.

The previous prime is 313212002297. The next prime is 313212002359. The reversal of 313212002321 is 123200212313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313212002321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313212002293 and 313212002302.

It is not an unprimeable number, because it can be changed into a prime (313212004321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4617116 + ... + 4684461.

It is an arithmetic number, because the mean of its divisors is an integer number (39587515968).

Almost surely, 2313212002321 is an apocalyptic number.

It is an amenable number.

313212002321 is a deficient number, since it is larger than the sum of its proper divisors (3488125423).

313212002321 is a wasteful number, since it uses less digits than its factorization.

313212002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9301951.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 313212002321 its reverse (123200212313), we get a palindrome (436412214634).

The spelling of 313212002321 in words is "three hundred thirteen billion, two hundred twelve million, two thousand, three hundred twenty-one".

Divisors: 1 151 223 33673 9301577 1404538127 2074251671 313212002321