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3220054221 = 31073351407
BaseRepresentation
bin1011111111101110…
…0010000011001101
322022102002200222110
42333323202003031
523043313213341
61251304534233
7142540003116
oct27773420315
98272080873
103220054221
11140270043a
1275a481379
133c4170837
1422792920d
1513ca60216
hexbfee20cd

3220054221 has 4 divisors (see below), whose sum is σ = 4293405632. Its totient is φ = 2146702812.

The previous prime is 3220054219. The next prime is 3220054231. The reversal of 3220054221 is 1224500223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3220054221 - 21 = 3220054219 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 (3220054231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536675701 + ... + 536675706.

It is an arithmetic number, because the mean of its divisors is an integer number (1073351408).

Almost surely, 23220054221 is an apocalyptic number.

It is an amenable number.

3220054221 is a deficient number, since it is larger than the sum of its proper divisors (1073351411).

3220054221 is a wasteful number, since it uses less digits than its factorization.

3220054221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073351410.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 3220054221 is about 56745.5215942192. The cubic root of 3220054221 is about 1476.6845403815.

Adding to 3220054221 its reverse (1224500223), we get a palindrome (4444554444).

The spelling of 3220054221 in words is "three billion, two hundred twenty million, fifty-four thousand, two hundred twenty-one".

Divisors: 1 3 1073351407 3220054221