Search a number
-
+
2311220201 = 4382365309
BaseRepresentation
bin1000100111000010…
…0110101111101001
312222001222011002012
42021300212233221
514213133021301
61021201245305
7111163022213
oct21160465751
95861864065
102311220201
11a86694a44
12546033835
132aaaa3224
1417cd4d5b3
15d7d8aebb
hex89c26be9

2311220201 has 8 divisors (see below), whose sum is σ = 2367879360. Its totient is φ = 2254693392.

The previous prime is 2311220189. The next prime is 2311220209. The reversal of 2311220201 is 1020221132.

It is a happy number.

2311220201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2311220201 - 230 = 1237478377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311220209) 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, 2735 + ... + 68043.

It is an arithmetic number, because the mean of its divisors is an integer number (295984920).

Almost surely, 22311220201 is an apocalyptic number.

It is an amenable number.

2311220201 is a deficient number, since it is larger than the sum of its proper divisors (56659159).

2311220201 is an equidigital number, since it uses as much as digits as its factorization.

2311220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66175.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2311220201 is about 48075.1515962248. The cubic root of 2311220201 is about 1322.1491239837.

Adding to 2311220201 its reverse (1020221132), we get a palindrome (3331441333).

The spelling of 2311220201 in words is "two billion, three hundred eleven million, two hundred twenty thousand, two hundred one".

Divisors: 1 43 823 35389 65309 2808287 53749307 2311220201