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313020212201 = 1960915963089
BaseRepresentation
bin1001000111000010111…
…01010110001111101001
31002220221220202100010122
410203201131112033221
520112031133242301
6355444405253025
731420634621564
oct4434135261751
91086856670118
10313020212201
11110829827454
12507b9a04175
1323696459498
141121644d4db
1582207a481b
hex48e17563e9

313020212201 has 4 divisors (see below), whose sum is σ = 313036194900. Its totient is φ = 313004229504.

The previous prime is 313020212191. The next prime is 313020212227. The reversal of 313020212201 is 102212020313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 301207782976 + 11812429225 = 548824^2 + 108685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313020212201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313020212201.

It is not an unprimeable number, because it can be changed into a prime (313020212801) 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, 7961936 + ... + 8001153.

It is an arithmetic number, because the mean of its divisors is an integer number (78259048725).

Almost surely, 2313020212201 is an apocalyptic number.

It is an amenable number.

313020212201 is a deficient number, since it is larger than the sum of its proper divisors (15982699).

313020212201 is a wasteful number, since it uses less digits than its factorization.

313020212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15982698.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 313020212201 its reverse (102212020313), we get a palindrome (415232232514).

The spelling of 313020212201 in words is "three hundred thirteen billion, twenty million, two hundred twelve thousand, two hundred one".

Divisors: 1 19609 15963089 313020212201