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528269 = 7210781
BaseRepresentation
bin10000000111110001101
3222211122112
42000332031
5113401034
615153405
74330100
oct2007615
9884575
10528269
11330995
12215865
131565b1
14da737
15a67ce
hex80f8d

528269 has 6 divisors (see below), whose sum is σ = 614574. Its totient is φ = 452760.

The previous prime is 528263. The next prime is 528289. The reversal of 528269 is 962825.

It can be written as a sum of positive squares in only one way, i.e., 405769 + 122500 = 637^2 + 350^2 .

It is not a de Polignac number, because 528269 - 28 = 528013 is a prime.

It is a super-2 number, since 2×5282692 = 558136272722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5342 + ... + 5439.

It is an arithmetic number, because the mean of its divisors is an integer number (102429).

2528269 is an apocalyptic number.

It is an amenable number.

528269 is a deficient number, since it is larger than the sum of its proper divisors (86305).

528269 is a wasteful number, since it uses less digits than its factorization.

528269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10795 (or 10788 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 528269 is about 726.8211609468. The cubic root of 528269 is about 80.8385240110.

It can be divided in two parts, 528 and 269, that added together give a palindrome (797).

The spelling of 528269 in words is "five hundred twenty-eight thousand, two hundred sixty-nine".

Divisors: 1 7 49 10781 75467 528269