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2220212023 = 2309961547
BaseRepresentation
bin1000010001010101…
…1011111100110111
312201201201110022221
42010111123330313
514021333241043
61004150503211
7106006330231
oct20425337467
95651643287
102220212023
11a3a285177
1251b664b07
13294c8a433
14170c1d251
15cedb08ed
hex8455bf37

2220212023 has 4 divisors (see below), whose sum is σ = 2221175880. Its totient is φ = 2219248168.

The previous prime is 2220212017. The next prime is 2220212063. The reversal of 2220212023 is 3202120222.

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 2220212023 - 229 = 1683341111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220211988 and 2220212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220212063) 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, 478465 + ... + 483082.

It is an arithmetic number, because the mean of its divisors is an integer number (555293970).

Almost surely, 22220212023 is an apocalyptic number.

2220212023 is a deficient number, since it is larger than the sum of its proper divisors (963857).

2220212023 is an equidigital number, since it uses as much as digits as its factorization.

2220212023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963856.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2220212023 is about 47119.1258726220. The cubic root of 2220212023 is about 1304.5622784886.

Adding to 2220212023 its reverse (3202120222), we get a palindrome (5422332245).

It can be divided in two parts, 22202 and 12023, that added together give a square (34225 = 1852).

The spelling of 2220212023 in words is "two billion, two hundred twenty million, two hundred twelve thousand, twenty-three".

Divisors: 1 2309 961547 2220212023