Search a number
-
+
4390223 = 29473221
BaseRepresentation
bin10000101111110101001111
322021001020212
4100233311033
52110441343
6234033035
752213325
oct20576517
98231225
104390223
112529492
12157877b
13ba9386
14823d15
155bac18
hex42fd4f

4390223 has 8 divisors (see below), whose sum is σ = 4639680. Its totient is φ = 4147360.

The previous prime is 4390219. The next prime is 4390229. The reversal of 4390223 is 3220934.

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 4390223 - 22 = 4390219 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390229) 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, 248 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (579960).

Almost surely, 24390223 is an apocalyptic number.

4390223 is a deficient number, since it is larger than the sum of its proper divisors (249457).

4390223 is a wasteful number, since it uses less digits than its factorization.

4390223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 4390223 is about 2095.2858993464. The cubic root of 4390223 is about 163.7427928378.

The spelling of 4390223 in words is "four million, three hundred ninety thousand, two hundred twenty-three".

Divisors: 1 29 47 1363 3221 93409 151387 4390223