Search a number
-
+
220898568 = 233112294361
BaseRepresentation
bin11010010101010…
…10010100001000
3120101122210212110
431022222110020
5423022223233
633530342320
75321415102
oct1512522410
9511583773
10220898568
11103767400
1261b8a9a0
13369c3717
14214a2572
15145d6663
hexd2aa508

220898568 has 192 divisors, whose sum is σ = 653083200. Its totient is φ = 62092800.

The previous prime is 220898563. The next prime is 220898569. The reversal of 220898568 is 865898022.

It is not an unprimeable number, because it can be changed into a prime (220898563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3621258 + ... + 3621318.

It is an arithmetic number, because the mean of its divisors is an integer number (3401475).

Almost surely, 2220898568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220898568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326541600).

220898568 is an abundant number, since it is smaller than the sum of its proper divisors (432184632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220898568 is a wasteful number, since it uses less digits than its factorization.

220898568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The square root of 220898568 is about 14862.6568284409. The cubic root of 220898568 is about 604.5018488930.

The spelling of 220898568 in words is "two hundred twenty million, eight hundred ninety-eight thousand, five hundred sixty-eight".