Search a number
-
+
222540241 = 71115531861
BaseRepresentation
bin11010100001110…
…11000111010001
3120111202012211011
431100323013101
5423432241431
634025450521
75341363240
oct1520730721
9514665734
10222540241
11104688860
1262640a41
1337149a21
14217ac957
151480ccb1
hexd43b1d1

222540241 has 16 divisors (see below), whose sum is σ = 277780608. Its totient is φ = 173203200.

The previous prime is 222540233. The next prime is 222540259. The reversal of 222540241 is 142045222.

222540241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222540241 - 23 = 222540233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222540541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118651 + ... + 120511.

It is an arithmetic number, because the mean of its divisors is an integer number (17361288).

Almost surely, 2222540241 is an apocalyptic number.

It is an amenable number.

222540241 is a deficient number, since it is larger than the sum of its proper divisors (55240367).

222540241 is a wasteful number, since it uses less digits than its factorization.

222540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 222540241 is about 14917.7827105773. The cubic root of 222540241 is about 605.9956657897.

Adding to 222540241 its reverse (142045222), we get a palindrome (364585463).

The spelling of 222540241 in words is "two hundred twenty-two million, five hundred forty thousand, two hundred forty-one".

Divisors: 1 7 11 77 1553 1861 10871 13027 17083 20471 119581 143297 2890133 20230931 31791463 222540241