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2220220205 = 57196749831
BaseRepresentation
bin1000010001010101…
…1101111100101101
312201201201212112222
42010111131330231
514021334021310
61004151005125
7106006363130
oct20425357455
95651655488
102220220205
11a3a290335
1251b6697a5
13294c91088
14170c22217
15cedb3055
hex8455df2d

2220220205 has 32 divisors (see below), whose sum is σ = 3253032960. Its totient is φ = 1420752960.

The previous prime is 2220220201. The next prime is 2220220231. The reversal of 2220220205 is 5020220222.

It is a happy number.

It is not a de Polignac number, because 2220220205 - 22 = 2220220201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19640 + ... + 69470.

It is an arithmetic number, because the mean of its divisors is an integer number (101657280).

Almost surely, 22220220205 is an apocalyptic number.

It is an amenable number.

2220220205 is a deficient number, since it is larger than the sum of its proper divisors (1032812755).

2220220205 is a wasteful number, since it uses less digits than its factorization.

2220220205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49929.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2220220205 is about 47119.2126950356. The cubic root of 2220220205 is about 1304.5638810256.

Adding to 2220220205 its sum of digits (17), we get a palindrome (2220220222).

Adding to 2220220205 its reverse (5020220222), we get a palindrome (7240440427).

The spelling of 2220220205 in words is "two billion, two hundred twenty million, two hundred twenty thousand, two hundred five".

Divisors: 1 5 7 19 35 67 95 133 335 469 665 1273 2345 6365 8911 44555 49831 249155 348817 946789 1744085 3338677 4733945 6627523 16693385 23370739 33137615 63434863 116853695 317174315 444044041 2220220205