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5223221 = 31168491
BaseRepresentation
bin10011111011001100110101
3100211100220122
4103323030311
52314120341
6303541325
762253023
oct23731465
910740818
105223221
112a48313
1218ba845
13110b583
1499d713
156d294b
hex4fb335

5223221 has 4 divisors (see below), whose sum is σ = 5391744. Its totient is φ = 5054700.

The previous prime is 5223191. The next prime is 5223227. The reversal of 5223221 is 1223225.

5223221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 5223221 - 210 = 5222197 is a prime.

It is a super-2 number, since 2×52232212 = 54564075229682, which contains 22 as substring.

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 5223221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5223227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84215 + ... + 84276.

It is an arithmetic number, because the mean of its divisors is an integer number (1347936).

Almost surely, 25223221 is an apocalyptic number.

It is an amenable number.

5223221 is a deficient number, since it is larger than the sum of its proper divisors (168523).

5223221 is a wasteful number, since it uses less digits than its factorization.

5223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168522.

The product of its digits is 240, while the sum is 17.

The square root of 5223221 is about 2285.4367197540. The cubic root of 5223221 is about 173.5053219749.

Adding to 5223221 its reverse (1223225), we get a palindrome (6446446).

The spelling of 5223221 in words is "five million, two hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 31 168491 5223221