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286928241 = 395642747
BaseRepresentation
bin10001000110100…
…010110101110001
3201222220110112220
4101012202311301
51041423200431
644245511253
710052564325
oct2106426561
9658813486
10286928241
11137a66486
1280112529
13475a2032
142a16d985
151a2cab96
hex111a2d71

286928241 has 4 divisors (see below), whose sum is σ = 382570992. Its totient is φ = 191285492.

The previous prime is 286928189. The next prime is 286928263. The reversal of 286928241 is 142829682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 286928241 - 27 = 286928113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 286928193 and 286928202.

It is not an unprimeable number, because it can be changed into a prime (286928141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47821371 + ... + 47821376.

It is an arithmetic number, because the mean of its divisors is an integer number (95642748).

Almost surely, 2286928241 is an apocalyptic number.

It is an amenable number.

286928241 is a deficient number, since it is larger than the sum of its proper divisors (95642751).

286928241 is an equidigital number, since it uses as much as digits as its factorization.

286928241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95642750.

The product of its digits is 110592, while the sum is 42.

The square root of 286928241 is about 16938.9563137757. The cubic root of 286928241 is about 659.5652485803.

The spelling of 286928241 in words is "two hundred eighty-six million, nine hundred twenty-eight thousand, two hundred forty-one".

Divisors: 1 3 95642747 286928241