Search a number
-
+
2220311311 = 29107715537
BaseRepresentation
bin1000010001010111…
…0100001100001111
312201201220111112021
42010111310030033
514021344430221
61004152551011
7106010222551
oct20425641417
95651814467
102220311311
11a3a342829
1251b6b2467
13294cc369a
14170c474d1
15cedd0041
hex8457430f

2220311311 has 8 divisors (see below), whose sum is σ = 2318343120. Its totient is φ = 2123710848.

The previous prime is 2220311297. The next prime is 2220311339. The reversal of 2220311311 is 1131130222.

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 2220311311 - 217 = 2220180239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220311341) 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, 354666 + ... + 360871.

It is an arithmetic number, because the mean of its divisors is an integer number (289792890).

Almost surely, 22220311311 is an apocalyptic number.

2220311311 is a deficient number, since it is larger than the sum of its proper divisors (98031809).

2220311311 is a wasteful number, since it uses less digits than its factorization.

2220311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715673.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2220311311 is about 47120.1794457534. The cubic root of 2220311311 is about 1304.5817248970.

Adding to 2220311311 its reverse (1131130222), we get a palindrome (3351441533).

The spelling of 2220311311 in words is "two billion, two hundred twenty million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 29 107 3103 715537 20750573 76562459 2220311311