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2221224413 = 4015939341
BaseRepresentation
bin1000010001100101…
…0011000111011101
312201210121220001212
42010121103013131
514022113140123
61004224314205
7106021044632
oct20431230735
95653556055
102221224413
11a3a906861
1251ba72965
13295253195
14171004189
15d0010878
hex846531dd

2221224413 has 8 divisors (see below), whose sum is σ = 2230757496. Its totient is φ = 2211712000.

The previous prime is 2221224407. The next prime is 2221224419. The reversal of 2221224413 is 3144221222.

It is an interprime number because it is at equal distance from previous prime (2221224407) and next prime (2221224419).

It can be written as a sum of positive squares in 4 ways, for example, as 900120004 + 1321104409 = 30002^2 + 36347^2 .

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 2221224413 - 26 = 2221224349 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 (2221224419) 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, 233123 + ... + 242463.

It is an arithmetic number, because the mean of its divisors is an integer number (278844687).

Almost surely, 22221224413 is an apocalyptic number.

It is an amenable number.

2221224413 is a deficient number, since it is larger than the sum of its proper divisors (9533083).

2221224413 is an equidigital number, since it uses as much as digits as its factorization.

2221224413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335.

The product of its digits is 1536, while the sum is 23.

The square root of 2221224413 is about 47129.8675258058. The cubic root of 2221224413 is about 1304.7605365975.

Adding to 2221224413 its reverse (3144221222), we get a palindrome (5365445635).

The spelling of 2221224413 in words is "two billion, two hundred twenty-one million, two hundred twenty-four thousand, four hundred thirteen".

Divisors: 1 401 593 9341 237793 3745741 5539213 2221224413