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2220021109 = 171031267859
BaseRepresentation
bin1000010001010010…
…1101010101110101
312201201100202110001
42010110231111311
514021311133414
61004142431301
7106004603515
oct20424552565
95651322401
102220021109
11a3a164799
1251b592531
13294c21577
14170bad845
15ced74074
hex8452d575

2220021109 has 8 divisors (see below), whose sum is σ = 2373433920. Its totient is φ = 2069144256.

The previous prime is 2220021101. The next prime is 2220021121. The reversal of 2220021109 is 9011200222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220021109 - 23 = 2220021101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220021101) 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, 632179 + ... + 635680.

It is an arithmetic number, because the mean of its divisors is an integer number (296679240).

Almost surely, 22220021109 is an apocalyptic number.

It is an amenable number.

2220021109 is a deficient number, since it is larger than the sum of its proper divisors (153412811).

2220021109 is a wasteful number, since it uses less digits than its factorization.

2220021109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267979.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2220021109 is about 47117.0999638136. The cubic root of 2220021109 is about 1304.5248847113.

The spelling of 2220021109 in words is "two billion, two hundred twenty million, twenty-one thousand, one hundred nine".

Divisors: 1 17 103 1751 1267859 21553603 130589477 2220021109