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2216213441 = 13213113689
BaseRepresentation
bin1000010000011000…
…1011101111000001
312201110012022022022
42010012023233001
514014322312231
61003525051225
7105630334451
oct20406135701
95643168268
102216213441
11a37aa3a62
1251a256b15
132941ba400
1417049bd61
15ce870c7b
hex8418bbc1

2216213441 has 6 divisors (see below), whose sum is σ = 2399805270. Its totient is φ = 2045735328.

The previous prime is 2216213431. The next prime is 2216213477. The reversal of 2216213441 is 1443126122.

It can be written as a sum of positive squares in 3 ways, for example, as 51265600 + 2164947841 = 7160^2 + 46529^2 .

It is not a de Polignac number, because 2216213441 - 214 = 2216197057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2216213441.

It is not an unprimeable number, because it can be changed into a prime (2216213431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6556676 + ... + 6557013.

It is an arithmetic number, because the mean of its divisors is an integer number (399967545).

Almost surely, 22216213441 is an apocalyptic number.

It is an amenable number.

2216213441 is a deficient number, since it is larger than the sum of its proper divisors (183591829).

2216213441 is a wasteful number, since it uses less digits than its factorization.

2216213441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113715 (or 13113702 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 2216213441 is about 47076.6761889579. The cubic root of 2216213441 is about 1303.7786395253.

Adding to 2216213441 its reverse (1443126122), we get a palindrome (3659339563).

The spelling of 2216213441 in words is "two billion, two hundred sixteen million, two hundred thirteen thousand, four hundred forty-one".

Divisors: 1 13 169 13113689 170477957 2216213441