Search a number
-
+
2205122243 = 97129117609
BaseRepresentation
bin1000001101101111…
…0111111011000011
312200200022211001012
42003123313323003
514004002402433
61002451231135
7105434141552
oct20333677303
95620284035
102205122243
11a31808a85
125165a84ab
13291b05c7c
1416cc11d99
15cd8ce848
hex836f7ec3

2205122243 has 8 divisors (see below), whose sum is σ = 2229707760. Its totient is φ = 2180574720.

The previous prime is 2205122239. The next prime is 2205122251. The reversal of 2205122243 is 3422215022.

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 2205122243 - 22 = 2205122239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205122203) 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, 116423 + ... + 134031.

It is an arithmetic number, because the mean of its divisors is an integer number (278713470).

Almost surely, 22205122243 is an apocalyptic number.

2205122243 is a deficient number, since it is larger than the sum of its proper divisors (24585517).

2205122243 is a wasteful number, since it uses less digits than its factorization.

2205122243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18997.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2205122243 is about 46958.7291459213. The cubic root of 2205122243 is about 1301.6000501534.

Adding to 2205122243 its reverse (3422215022), we get a palindrome (5627337265).

The spelling of 2205122243 in words is "two billion, two hundred five million, one hundred twenty-two thousand, two hundred forty-three".

Divisors: 1 97 1291 17609 125227 1708073 22733219 2205122243