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10525820 = 225526291
BaseRepresentation
bin101000001001…
…110001111100
3201210202201012
4220021301330
510143311240
61013334352
7155316344
oct50116174
921722635
1010525820
115a3a228
1236373b8
132246cc6
14157dd24
15dcdb65
hexa09c7c

10525820 has 12 divisors (see below), whose sum is σ = 22104264. Its totient is φ = 4210320.

The previous prime is 10525817. The next prime is 10525831. The reversal of 10525820 is 2852501.

It is a super-2 number, since 2×105258202 = 221585773344800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 263126 + ... + 263165.

It is an arithmetic number, because the mean of its divisors is an integer number (1842022).

Almost surely, 210525820 is an apocalyptic number.

10525820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10525820 is an abundant number, since it is smaller than the sum of its proper divisors (11578444).

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

10525820 is a wasteful number, since it uses less digits than its factorization.

10525820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526300 (or 526298 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 10525820 is about 3244.3520154262. The cubic root of 10525820 is about 219.1553008382.

The spelling of 10525820 in words is "ten million, five hundred twenty-five thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 526291 1052582 2105164 2631455 5262910 10525820