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220220205 = 3514681347
BaseRepresentation
bin11010010000001…
…00101100101101
3120100101100022220
431020010230231
5422334021310
633504025553
75312561262
oct1510045455
9510340286
10220220205
11103343777
12619022b9
1336816a1a
1421367269
1514500670
hexd204b2d

220220205 has 8 divisors (see below), whose sum is σ = 352352352. Its totient is φ = 117450768.

The previous prime is 220220201. The next prime is 220220213. The reversal of 220220205 is 502022022.

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

It is not a de Polignac number, because 220220205 - 22 = 220220201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 14681347 = 220220205 / (2 + 2 + 0 + 2 + 2 + 0 + 2 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220201) 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, 7340659 + ... + 7340688.

It is an arithmetic number, because the mean of its divisors is an integer number (44044044).

Almost surely, 2220220205 is an apocalyptic number.

It is an amenable number.

220220205 is a deficient number, since it is larger than the sum of its proper divisors (132132147).

220220205 is a wasteful number, since it uses less digits than its factorization.

220220205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14681355.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 220220205 is about 14839.8182266495. The cubic root of 220220205 is about 603.8824210479.

Adding to 220220205 its reverse (502022022), we get a palindrome (722242227).

The spelling of 220220205 in words is "two hundred twenty million, two hundred twenty thousand, two hundred five".

Divisors: 1 3 5 15 14681347 44044041 73406735 220220205