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550120 = 23517809
BaseRepresentation
bin10000110010011101000
31000221121211
42012103220
5120100440
615442504
74450564
oct2062350
91027554
10550120
1134634a
12226434
1316351c
141046a4
15aceea
hex864e8

550120 has 32 divisors (see below), whose sum is σ = 1312200. Its totient is φ = 206848.

The previous prime is 550117. The next prime is 550127. The reversal of 550120 is 21055.

It can be written as a sum of positive squares in 4 ways, for example, as 544644 + 5476 = 738^2 + 74^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 550120.

It is not an unprimeable number, because it can be changed into a prime (550127) 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, 276 + ... + 1084.

2550120 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 550120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656100).

550120 is an abundant number, since it is smaller than the sum of its proper divisors (762080).

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

550120 is a wasteful number, since it uses less digits than its factorization.

550120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 833 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 550120 is about 741.7007482806. The cubic root of 550120 is about 81.9380853269.

Adding to 550120 its reverse (21055), we get a palindrome (571175).

The spelling of 550120 in words is "five hundred fifty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 809 1618 3236 4045 6472 8090 13753 16180 27506 32360 55012 68765 110024 137530 275060 550120