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220244239 = 3718132887
BaseRepresentation
bin11010010000010…
…10100100001111
3120100102120022001
431020022210033
5422340303424
633504333131
75313021325
oct1510124417
9510376261
10220244239
1110335a836
12619141a7
1336824947
1421371d15
1514507844
hexd20a90f

220244239 has 8 divisors (see below), whose sum is σ = 227453408. Its totient is φ = 213101280.

The previous prime is 220244207. The next prime is 220244261. The reversal of 220244239 is 932442022.

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 220244239 - 25 = 220244207 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 (220245239) 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, 9747 + ... + 23140.

It is an arithmetic number, because the mean of its divisors is an integer number (28431676).

Almost surely, 2220244239 is an apocalyptic number.

220244239 is a deficient number, since it is larger than the sum of its proper divisors (7209169).

220244239 is a wasteful number, since it uses less digits than its factorization.

220244239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33105.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 220244239 is about 14840.6279853650. The cubic root of 220244239 is about 603.9043887297.

The spelling of 220244239 in words is "two hundred twenty million, two hundred forty-four thousand, two hundred thirty-nine".

Divisors: 1 37 181 6697 32887 1216819 5952547 220244239