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264916849 = 1812695441
BaseRepresentation
bin11111100101001…
…00111101110001
3200110111011121011
433302210331301
51020304314344
642142030521
76364520221
oct1762447561
9613434534
10264916849
111265a1a4a
1274878441
1342b66242
1427280081
15183cdd34
hexfca4f71

264916849 has 8 divisors (see below), whose sum is σ = 267419880. Its totient is φ = 262425600.

The previous prime is 264916807. The next prime is 264916853. The reversal of 264916849 is 948619462.

It can be written as a sum of positive squares in 4 ways, for example, as 2250000 + 262666849 = 1500^2 + 16207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264916849 - 211 = 264914801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264916859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45969 + ... + 51409.

It is an arithmetic number, because the mean of its divisors is an integer number (33427485).

Almost surely, 2264916849 is an apocalyptic number.

It is an amenable number.

264916849 is a deficient number, since it is larger than the sum of its proper divisors (2503031).

264916849 is a wasteful number, since it uses less digits than its factorization.

264916849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891.

The product of its digits is 746496, while the sum is 49.

The square root of 264916849 is about 16276.2664330614. The cubic root of 264916849 is about 642.2486404403.

The spelling of 264916849 in words is "two hundred sixty-four million, nine hundred sixteen thousand, eight hundred forty-nine".

Divisors: 1 181 269 5441 48689 984821 1463629 264916849