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3113424221 = 7681405341
BaseRepresentation
bin1011100110010011…
…0001010101011101
322000222110100010012
42321210301111131
522334014033341
61232535253005
7140103445355
oct27144612535
98028410105
103113424221
1113584a0776
1272a81a165
133a804836b
142176cdb65
151334eb0eb
hexb993155d

3113424221 has 4 divisors (see below), whose sum is σ = 3113837244. Its totient is φ = 3113011200.

The previous prime is 3113424199. The next prime is 3113424239. The reversal of 3113424221 is 1224243113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2723796100 + 389628121 = 52190^2 + 19739^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113424221 - 214 = 3113407837 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 (3113444221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194990 + ... + 210351.

It is an arithmetic number, because the mean of its divisors is an integer number (778459311).

Almost surely, 23113424221 is an apocalyptic number.

It is an amenable number.

3113424221 is a deficient number, since it is larger than the sum of its proper divisors (413023).

3113424221 is an equidigital number, since it uses as much as digits as its factorization.

3113424221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413022.

The product of its digits is 1152, while the sum is 23.

The square root of 3113424221 is about 55798.0664629161. The cubic root of 3113424221 is about 1460.2014204188.

Adding to 3113424221 its reverse (1224243113), we get a palindrome (4337667334).

It can be divided in two parts, 31134 and 24221, that added together give a palindrome (55355).

The spelling of 3113424221 in words is "three billion, one hundred thirteen million, four hundred twenty-four thousand, two hundred twenty-one".

Divisors: 1 7681 405341 3113424221