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2203110221 = 13612778197
BaseRepresentation
bin1000001101010000…
…1100101101001101
312200112112121001212
42003110030231031
514002444011341
61002340144205
7105411061604
oct20324145515
95615477055
102203110221
11a30664354
12515998065
13291580220
1416c84aa3b
15cd6335eb
hex8350cb4d

2203110221 has 8 divisors (see below), whose sum is σ = 2411475864. Its totient is φ = 2000301120.

The previous prime is 2203110197. The next prime is 2203110227. The reversal of 2203110221 is 1220113022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17547721 + 2185562500 = 4189^2 + 46750^2 .

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 2203110221 - 230 = 1129368397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2203110196 and 2203110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203110227) 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, 1388306 + ... + 1389891.

It is an arithmetic number, because the mean of its divisors is an integer number (301434483).

Almost surely, 22203110221 is an apocalyptic number.

It is an amenable number.

2203110221 is a deficient number, since it is larger than the sum of its proper divisors (208365643).

2203110221 is a wasteful number, since it uses less digits than its factorization.

2203110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778271.

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

The square root of 2203110221 is about 46937.3009556366. The cubic root of 2203110221 is about 1301.2040562571.

Adding to 2203110221 its reverse (1220113022), we get a palindrome (3423223243).

The spelling of 2203110221 in words is "two billion, two hundred three million, one hundred ten thousand, two hundred twenty-one".

Divisors: 1 13 61 793 2778197 36116561 169470017 2203110221