Search a number
-
+
528507108 = 223214680753
BaseRepresentation
bin11111100000000…
…110000011100100
31100211110221110100
4133200012003210
52040244211413
6124235424100
716045144023
oct3740060344
91324427410
10528507108
11251368238
12128bb5030
13856566cc
14502968ba
15315e9a73
hex1f8060e4

528507108 has 18 divisors (see below), whose sum is σ = 1335948614. Its totient is φ = 176169024.

The previous prime is 528507061. The next prime is 528507113. The reversal of 528507108 is 801705825.

It can be written as a sum of positive squares in only one way, i.e., 515199204 + 13307904 = 22698^2 + 3648^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14680753 = 528507108 / (5 + 2 + 8 + 5 + 0 + 7 + 1 + 0 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7340341 + ... + 7340412.

Almost surely, 2528507108 is an apocalyptic number.

It is an amenable number.

528507108 is an abundant number, since it is smaller than the sum of its proper divisors (807441506).

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

528507108 is a wasteful number, since it uses less digits than its factorization.

528507108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14680763 (or 14680758 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 528507108 is about 22989.2824594418. The cubic root of 528507108 is about 808.5066770296.

The spelling of 528507108 in words is "five hundred twenty-eight million, five hundred seven thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 14680753 29361506 44042259 58723012 88084518 132126777 176169036 264253554 528507108