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528969 = 3725189
BaseRepresentation
bin10000001001001001001
3222212121110
42001021021
5113411334
615200533
74332120
oct2011111
9885543
10528969
11331471
12216149
131569cc
14daab7
15a6ae9
hex81249

528969 has 8 divisors (see below), whose sum is σ = 806080. Its totient is φ = 302256.

The previous prime is 528967. The next prime is 528971. The reversal of 528969 is 969825.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (528967) and next prime (528971).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 528969 - 21 = 528967 is a prime.

It is a super-2 number, since 2×5289692 = 559616405922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (528967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12574 + ... + 12615.

It is an arithmetic number, because the mean of its divisors is an integer number (100760).

2528969 is an apocalyptic number.

It is an amenable number.

528969 is a deficient number, since it is larger than the sum of its proper divisors (277111).

528969 is a wasteful number, since it uses less digits than its factorization.

528969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25199.

The product of its digits is 38880, while the sum is 39.

The square root of 528969 is about 727.3025505249. The cubic root of 528969 is about 80.8742141556.

The spelling of 528969 in words is "five hundred twenty-eight thousand, nine hundred sixty-nine".

Divisors: 1 3 7 21 25189 75567 176323 528969