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525122 = 213191063
BaseRepresentation
bin10000000001101000010
3222200022222
42000031002
5113300442
615131042
74314653
oct2001502
9880288
10525122
11329594
12213a82
13155030
14d952a
15a58d2
hex80342

525122 has 16 divisors (see below), whose sum is σ = 893760. Its totient is φ = 229392.

The previous prime is 525101. The next prime is 525127. The reversal of 525122 is 221525.

It is a super-2 number, since 2×5251222 = 551506229768, which contains 22 as substring.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 525122.

It is not an unprimeable number, because it can be changed into a prime (525127) by changing a digit.

525122 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

2525122 is an apocalyptic number.

525122 is a deficient number, since it is larger than the sum of its proper divisors (368638).

525122 is a wasteful number, since it uses less digits than its factorization.

525122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 200, while the sum is 17.

The square root of 525122 is about 724.6530204174. The cubic root of 525122 is about 80.6776806520.

Adding to 525122 its reverse (221525), we get a palindrome (746647).

The spelling of 525122 in words is "five hundred twenty-five thousand, one hundred twenty-two".

Divisors: 1 2 13 19 26 38 247 494 1063 2126 13819 20197 27638 40394 262561 525122