[go: up one dir, main page]

Search a number
-
+
2220303331 = 18211121921
BaseRepresentation
bin1000010001010111…
…0010001111100011
312201201220002120201
42010111302033203
514021344201311
61004152450031
7106010160361
oct20425621743
95651802521
102220303331
11a3a337834
1251b6a9917
13294cbcb6c
14170c44631
15cedcc9c1
hex845723e3

2220303331 has 4 divisors (see below), whose sum is σ = 2220443464. Its totient is φ = 2220163200.

The previous prime is 2220303313. The next prime is 2220303341. The reversal of 2220303331 is 1333030222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220303331 - 211 = 2220301283 is a prime.

It is a super-2 number, since 2×22203033312 = 9859493763299391122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220303299 and 2220303308.

It is not an unprimeable number, because it can be changed into a prime (2220303341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42750 + ... + 79171.

It is an arithmetic number, because the mean of its divisors is an integer number (555110866).

Almost surely, 22220303331 is an apocalyptic number.

2220303331 is a deficient number, since it is larger than the sum of its proper divisors (140133).

2220303331 is a wasteful number, since it uses less digits than its factorization.

2220303331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140132.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2220303331 is about 47120.0947685804. The cubic root of 2220303331 is about 1304.5801619668.

Adding to 2220303331 its reverse (1333030222), we get a palindrome (3553333553).

The spelling of 2220303331 in words is "two billion, two hundred twenty million, three hundred three thousand, three hundred thirty-one".

Divisors: 1 18211 121921 2220303331