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528007 = 619853
BaseRepresentation
bin10000000111010000111
3222211021211
42000322013
5113344012
615152251
74326244
oct2007207
9884254
10528007
11330777
12215687
1315643c
14da5cb
15a66a7
hex80e87

528007 has 4 divisors (see below), whose sum is σ = 529480. Its totient is φ = 526536.

The previous prime is 528001. The next prime is 528013. The reversal of 528007 is 700825.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (528001) and next prime (528013).

It is a cyclic number.

It is not a de Polignac number, because 528007 - 219 = 3719 is a prime.

It is an Ulam number.

It is a Duffinian number.

528007 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528007.

It is not an unprimeable number, because it can be changed into a prime (528001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (132370).

2528007 is an apocalyptic number.

528007 is a deficient number, since it is larger than the sum of its proper divisors (1473).

528007 is an equidigital number, since it uses as much as digits as its factorization.

528007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 528007 is about 726.6409016839. The cubic root of 528007 is about 80.8251575912.

The spelling of 528007 in words is "five hundred twenty-eight thousand, seven".

Divisors: 1 619 853 528007