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525388241 = 7223466183
BaseRepresentation
bin11111010100001…
…100100111010001
31100121121111011202
4133110030213101
52033444410431
6124044520545
716006504100
oct3724144721
91317544152
10525388241
1124a627a64
12127b50155
1384b03c21
144dac4037
15311d08cb
hex1f50c9d1

525388241 has 12 divisors (see below), whose sum is σ = 637739712. Its totient is φ = 430752168.

The previous prime is 525388187. The next prime is 525388249. The reversal of 525388241 is 142883525.

It is not a de Polignac number, because 525388241 - 26 = 525388177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525388195 and 525388204.

It is not an unprimeable number, because it can be changed into a prime (525388249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231965 + ... + 234218.

It is an arithmetic number, because the mean of its divisors is an integer number (53144976).

Almost surely, 2525388241 is an apocalyptic number.

It is an amenable number.

525388241 is a deficient number, since it is larger than the sum of its proper divisors (112351471).

525388241 is a wasteful number, since it uses less digits than its factorization.

525388241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466220 (or 466213 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 525388241 is about 22921.3490222543. The cubic root of 525388241 is about 806.9131308871.

The spelling of 525388241 in words is "five hundred twenty-five million, three hundred eighty-eight thousand, two hundred forty-one".

Divisors: 1 7 23 49 161 1127 466183 3263281 10722209 22842967 75055463 525388241