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505286241 = 32361120049
BaseRepresentation
bin11110000111100…
…000111001100001
31022012210012102020
4132013200321201
52013323124431
6122050012053
715343601505
oct3607407141
91265705366
10505286241
1123a248039
12121277029
13808b6255
144b170305
152e55e696
hex1e1e0e61

505286241 has 16 divisors (see below), whose sum is σ = 714537600. Its totient is φ = 316926720.

The previous prime is 505286239. The next prime is 505286261. The reversal of 505286241 is 142682505.

It is not a de Polignac number, because 505286241 - 21 = 505286239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505286261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55816 + ... + 64233.

It is an arithmetic number, because the mean of its divisors is an integer number (44658600).

Almost surely, 2505286241 is an apocalyptic number.

It is an amenable number.

505286241 is a deficient number, since it is larger than the sum of its proper divisors (209251359).

505286241 is a wasteful number, since it uses less digits than its factorization.

505286241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120136.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 505286241 is about 22478.5729306822. The cubic root of 505286241 is about 796.4878541240.

Adding to 505286241 its product of nonzero digits (19200), we get a square (505305441 = 224792).

The spelling of 505286241 in words is "five hundred five million, two hundred eighty-six thousand, two hundred forty-one".

Divisors: 1 3 23 61 69 183 1403 4209 120049 360147 2761127 7322989 8283381 21968967 168428747 505286241