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10528681 = 12782903
BaseRepresentation
bin101000001010…
…011110101001
3201210220122011
4220022132221
510143404211
61013355521
7155330602
oct50123651
921726564
1010528681
115a41399
123638ba1
1322483b7
141580da9
15dce921
hexa0a7a9

10528681 has 4 divisors (see below), whose sum is σ = 10611712. Its totient is φ = 10445652.

The previous prime is 10528657. The next prime is 10528691. The reversal of 10528681 is 18682501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10528681 - 25 = 10528649 is a prime.

It is a super-2 number, since 2×105286812 = 221706247199522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10528691) 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 3 ways as a sum of consecutive naturals, for example, 41325 + ... + 41578.

It is an arithmetic number, because the mean of its divisors is an integer number (2652928).

Almost surely, 210528681 is an apocalyptic number.

It is an amenable number.

10528681 is a deficient number, since it is larger than the sum of its proper divisors (83031).

10528681 is an equidigital number, since it uses as much as digits as its factorization.

10528681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83030.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 10528681 is about 3244.7929055642. The cubic root of 10528681 is about 219.1751550796.

The spelling of 10528681 in words is "ten million, five hundred twenty-eight thousand, six hundred eighty-one".

Divisors: 1 127 82903 10528681