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523268 = 22130817
BaseRepresentation
bin1111111110000000100
3222120210022
41333300010
5113221033
615114312
74306364
oct1776004
9876708
10523268
11328159
12212998
13154235
14d89a4
15a5098
hex7fc04

523268 has 6 divisors (see below), whose sum is σ = 915726. Its totient is φ = 261632.

The previous prime is 523261. The next prime is 523297. The reversal of 523268 is 862325.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 7744 = 718^2 + 88^2 .

It is a d-powerful number, because it can be written as 54 + 24 + 216 + 311 + 67 + 8 .

It is not an unprimeable number, because it can be changed into a prime (523261) by changing a digit.

523268 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65405 + ... + 65412.

It is an arithmetic number, because the mean of its divisors is an integer number (152621).

2523268 is an apocalyptic number.

It is an amenable number.

523268 is a deficient number, since it is larger than the sum of its proper divisors (392458).

523268 is a wasteful number, since it uses less digits than its factorization.

523268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130821 (or 130819 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 523268 is about 723.3726563812. The cubic root of 523268 is about 80.5826216004.

The spelling of 523268 in words is "five hundred twenty-three thousand, two hundred sixty-eight".

Divisors: 1 2 4 130817 261634 523268