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268346305 = 570176561
BaseRepresentation
bin11111111111010…
…10001111000001
3200200221101221001
433333222033001
51022144040210
642343332001
76435622513
oct1777521701
9620841831
10268346305
11128524607
1275a51001
13437971c6
14278d3bb3
151885a03a
hexffea3c1

268346305 has 8 divisors (see below), whose sum is σ = 322479144. Its totient is φ = 214368000.

The previous prime is 268346297. The next prime is 268346341. The reversal of 268346305 is 503643862.

It can be written as a sum of positive squares in 4 ways, for example, as 68095504 + 200250801 = 8252^2 + 14151^2 .

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

It is not a de Polignac number, because 268346305 - 23 = 268346297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34776 + ... + 41785.

It is an arithmetic number, because the mean of its divisors is an integer number (40309893).

Almost surely, 2268346305 is an apocalyptic number.

It is an amenable number.

268346305 is a deficient number, since it is larger than the sum of its proper divisors (54132839).

268346305 is an equidigital number, since it uses as much as digits as its factorization.

268346305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77267.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 268346305 is about 16381.2791014621. The cubic root of 268346305 is about 645.0081564580.

The spelling of 268346305 in words is "two hundred sixty-eight million, three hundred forty-six thousand, three hundred five".

Divisors: 1 5 701 3505 76561 382805 53669261 268346305