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520300 = 225211243
BaseRepresentation
bin1111111000001101100
3222102201101
41333001230
5113122200
615052444
74264624
oct1770154
9872641
10520300
11325a00
12211124
13152a91
14d7884
15a426a
hex7f06c

520300 has 54 divisors (see below), whose sum is σ = 1269884. Its totient is φ = 184800.

The previous prime is 520297. The next prime is 520307. The reversal of 520300 is 3025.

520300 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (520307) 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 17 ways as a sum of consecutive naturals, for example, 12079 + ... + 12121.

2520300 is an apocalyptic number.

520300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634942).

520300 is an abundant number, since it is smaller than the sum of its proper divisors (749584).

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

520300 is a wasteful number, since it uses less digits than its factorization.

520300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 520300 is about 721.3182376732. The cubic root of 520300 is about 80.4299765287.

Adding to 520300 its reverse (3025), we get a palindrome (523325).

It can be divided in two parts, 520 and 300, that added together give a triangular number (820 = T40).

The spelling of 520300 in words is "five hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 43 44 50 55 86 100 110 121 172 215 220 242 275 430 473 484 550 605 860 946 1075 1100 1210 1892 2150 2365 2420 3025 4300 4730 5203 6050 9460 10406 11825 12100 20812 23650 26015 47300 52030 104060 130075 260150 520300