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2216494223 = 16931309211
BaseRepresentation
bin1000010000011101…
…0000010010001111
312201110201120110122
42010013100102033
514014410303343
61003535055155
7105632614166
oct20407202217
95643646418
102216494223
11a38175a09
1251a3714bb
13294288158
141705323dd
15ce8c9068
hex841d048f

2216494223 has 4 divisors (see below), whose sum is σ = 2217805128. Its totient is φ = 2215183320.

The previous prime is 2216494207. The next prime is 2216494243. The reversal of 2216494223 is 3224946122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216494223 - 24 = 2216494207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216494243) 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, 652913 + ... + 656298.

It is an arithmetic number, because the mean of its divisors is an integer number (554451282).

Almost surely, 22216494223 is an apocalyptic number.

2216494223 is a deficient number, since it is larger than the sum of its proper divisors (1310905).

2216494223 is a wasteful number, since it uses less digits than its factorization.

2216494223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310904.

The product of its digits is 41472, while the sum is 35.

The square root of 2216494223 is about 47079.6582719119. The cubic root of 2216494223 is about 1303.8336977172.

The spelling of 2216494223 in words is "two billion, two hundred sixteen million, four hundred ninety-four thousand, two hundred twenty-three".

Divisors: 1 1693 1309211 2216494223