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20333052 = 2233593191
BaseRepresentation
bin100110110010…
…0000111111100
31102021000201000
41031210013330
520201124202
62003450300
7334554015
oct115440774
942230630
1020333052
1110528583
126986990
13429bbbc
1429b400c
151bb991c
hex13641fc

20333052 has 48 divisors (see below), whose sum is σ = 53625600. Its totient is φ = 6660720.

The previous prime is 20333041. The next prime is 20333057. The reversal of 20333052 is 25033302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4777 + ... + 7967.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 220333052 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 20333052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26812800).

20333052 is an abundant number, since it is smaller than the sum of its proper divisors (33292548).

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

20333052 is a wasteful number, since it uses less digits than its factorization.

20333052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 20333052 is about 4509.2185575774. The cubic root of 20333052 is about 272.9402115175.

Adding to 20333052 its reverse (25033302), we get a palindrome (45366354).

The spelling of 20333052 in words is "twenty million, three hundred thirty-three thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 59 108 118 177 236 354 531 708 1062 1593 2124 3186 3191 6372 6382 9573 12764 19146 28719 38292 57438 86157 114876 172314 188269 344628 376538 564807 753076 1129614 1694421 2259228 3388842 5083263 6777684 10166526 20333052