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9812525 = 523891009
BaseRepresentation
bin100101011011…
…101000101101
3200110112020212
4211123220231
510003000100
6550152205
7146255642
oct45335055
920415225
109812525
1155a2328
123352665
132057438
141435dc9
15cdc635
hex95ba2d

9812525 has 12 divisors (see below), whose sum is σ = 12210900. Its totient is φ = 7822080.

The previous prime is 9812503. The next prime is 9812533. The reversal of 9812525 is 5252189.

9812525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1350244 + 8462281 = 1162^2 + 2909^2 .

It is not a de Polignac number, because 9812525 - 28 = 9812269 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9812491 and 9812500.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9221 + ... + 10229.

It is an arithmetic number, because the mean of its divisors is an integer number (1017575).

Almost surely, 29812525 is an apocalyptic number.

It is an amenable number.

9812525 is a deficient number, since it is larger than the sum of its proper divisors (2398375).

9812525 is a wasteful number, since it uses less digits than its factorization.

9812525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1403 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 9812525 is about 3132.4950119673. The cubic root of 9812525 is about 214.0886246021.

The spelling of 9812525 in words is "nine million, eight hundred twelve thousand, five hundred twenty-five".

Divisors: 1 5 25 389 1009 1945 5045 9725 25225 392501 1962505 9812525