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526428 = 223272089
BaseRepresentation
bin10000000100001011100
3222202010100
42000201130
5113321203
615141100
74321530
oct2004134
9882110
10526428
1132a571
12214790
131557c6
14d9bc0
15a5ea3
hex8085c

526428 has 36 divisors (see below), whose sum is σ = 1521520. Its totient is φ = 150336.

The previous prime is 526423. The next prime is 526429. The reversal of 526428 is 824625.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526423) by changing a digit.

526428 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 in 11 ways as a sum of consecutive naturals, for example, 793 + ... + 1296.

2526428 is an apocalyptic number.

It is an amenable number.

526428 is an abundant number, since it is smaller than the sum of its proper divisors (995092).

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

526428 is a wasteful number, since it uses less digits than its factorization.

526428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106 (or 2101 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 526428 is about 725.5535817567. The cubic root of 526428 is about 80.7445081844.

It can be divided in two parts, 52642 and 8, that added together give a triangular number (52650 = T324).

The spelling of 526428 in words is "five hundred twenty-six thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 2089 4178 6267 8356 12534 14623 18801 25068 29246 37602 43869 58492 75204 87738 131607 175476 263214 526428