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2221200313 = 3171651623
BaseRepresentation
bin1000010001100100…
…1101001110111001
312201210120200000021
42010121031032321
514022111402223
61004224010441
7106020614443
oct20431151671
95653520007
102221200313
11a3a89a742
1251ba60a21
13295245217
14170dd9493
15d000865d
hex8464d3b9

2221200313 has 4 divisors (see below), whose sum is σ = 2292851968. Its totient is φ = 2149548660.

The previous prime is 2221200287. The next prime is 2221200329. The reversal of 2221200313 is 3130021222.

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.

It is a cyclic number.

It is not a de Polignac number, because 2221200313 - 29 = 2221199801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221200713) 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, 35825781 + ... + 35825842.

It is an arithmetic number, because the mean of its divisors is an integer number (573212992).

Almost surely, 22221200313 is an apocalyptic number.

It is an amenable number.

2221200313 is a deficient number, since it is larger than the sum of its proper divisors (71651655).

2221200313 is an equidigital number, since it uses as much as digits as its factorization.

2221200313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71651654.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2221200313 is about 47129.6118486032. The cubic root of 2221200313 is about 1304.7558177523.

Adding to 2221200313 its reverse (3130021222), we get a palindrome (5351221535).

The spelling of 2221200313 in words is "two billion, two hundred twenty-one million, two hundred thousand, three hundred thirteen".

Divisors: 1 31 71651623 2221200313