Search a number
-
+
528978 = 23131673
BaseRepresentation
bin10000001001001010010
3222212121210
42001021102
5113411403
615200550
74332132
oct2011122
9885553
10528978
1133147a
12216156
13156a08
14daac2
15a6b03
hex81252

528978 has 16 divisors (see below), whose sum is σ = 1067616. Its totient is φ = 174720.

The previous prime is 528973. The next prime is 528991. The reversal of 528978 is 879825.

It is a Curzon number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (528971) 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, 450 + ... + 1122.

It is an arithmetic number, because the mean of its divisors is an integer number (66726).

2528978 is an apocalyptic number.

528978 is an abundant number, since it is smaller than the sum of its proper divisors (538638).

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

528978 is a wasteful number, since it uses less digits than its factorization.

528978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 40320, while the sum is 39.

The square root of 528978 is about 727.3087377448. The cubic root of 528978 is about 80.8746728238.

The spelling of 528978 in words is "five hundred twenty-eight thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 131 262 393 673 786 1346 2019 4038 88163 176326 264489 528978