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264868909 = 798773823
BaseRepresentation
bin11111100100110…
…01010000101101
3200110101201211121
433302121100231
51020301301114
642141020541
76364230364
oct1762312055
9613351747
10264868909
11126569a28
1274854751
1342b4a486
142726a7db
15183bea24
hexfc9942d

264868909 has 8 divisors (see below), whose sum is σ = 268597760. Its totient is φ = 261149616.

The previous prime is 264868871. The next prime is 264868913. The reversal of 264868909 is 909868462.

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 264868909 - 27 = 264868781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264868999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67372 + ... + 71194.

It is an arithmetic number, because the mean of its divisors is an integer number (33574720).

Almost surely, 2264868909 is an apocalyptic number.

It is an amenable number.

264868909 is a deficient number, since it is larger than the sum of its proper divisors (3728851).

264868909 is an equidigital number, since it uses as much as digits as its factorization.

264868909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 264868909 is about 16274.7936699671. The cubic root of 264868909 is about 642.2098971423.

The spelling of 264868909 in words is "two hundred sixty-four million, eight hundred sixty-eight thousand, nine hundred nine".

Divisors: 1 79 877 3823 69283 302017 3352771 264868909