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2220021313 = 17196873131
BaseRepresentation
bin1000010001010010…
…1101011001000001
312201201100202201121
42010110231121001
514021311140223
61004142432241
7106004604226
oct20424553101
95651322647
102220021313
11a3a164964
1251b592681
13294c216a3
14170bad94d
15ced7415d
hex8452d641

2220021313 has 8 divisors (see below), whose sum is σ = 2474327520. Its totient is φ = 1979461440.

The previous prime is 2220021299. The next prime is 2220021319. The reversal of 2220021313 is 3131200222.

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-2220021313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220021319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3436243 + ... + 3436888.

It is an arithmetic number, because the mean of its divisors is an integer number (309290940).

Almost surely, 22220021313 is an apocalyptic number.

It is an amenable number.

2220021313 is a deficient number, since it is larger than the sum of its proper divisors (254306207).

2220021313 is a wasteful number, since it uses less digits than its factorization.

2220021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873167.

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

The square root of 2220021313 is about 47117.1021286327. The cubic root of 2220021313 is about 1304.5249246694.

Adding to 2220021313 its reverse (3131200222), we get a palindrome (5351221535).

The spelling of 2220021313 in words is "two billion, two hundred twenty million, twenty-one thousand, three hundred thirteen".

Divisors: 1 17 19 323 6873131 116843227 130589489 2220021313