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220000111 = 1726474889
BaseRepresentation
bin11010001110011…
…10111101101111
3120022222011102021
431013032331233
5422310000421
633455211011
75310653512
oct1507167557
9508864367
10220000111
11103203381
1261816a67
133676a7a6
142130ad79
15144aa341
hexd1cef6f

220000111 has 8 divisors (see below), whose sum is σ = 233076960. Its totient is φ = 206938368.

The previous prime is 220000073. The next prime is 220000141. The reversal of 220000111 is 111000022.

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

It is a cyclic number.

It is not a de Polignac number, because 220000111 - 29 = 219999599 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 220000094 and 220000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42555 + ... + 47443.

It is an arithmetic number, because the mean of its divisors is an integer number (29134620).

Almost surely, 2220000111 is an apocalyptic number.

220000111 is a deficient number, since it is larger than the sum of its proper divisors (13076849).

220000111 is a wasteful number, since it uses less digits than its factorization.

220000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 220000111 is about 14832.4007160001. The cubic root of 220000111 is about 603.6811752079.

Adding to 220000111 its reverse (111000022), we get a palindrome (331000133).

The spelling of 220000111 in words is "two hundred twenty million, one hundred eleven", and thus it is an aban number.

Divisors: 1 17 2647 4889 44999 83113 12941183 220000111