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268504273 = 1715794369
BaseRepresentation
bin10000000000010…
…000110011010001
3200201020102121201
4100000100303101
51022214114043
642350551201
76440151202
oct2000206321
9621212551
10268504273
11128622264
1275b08501
134382108b
14279355a9
151888bc4d
hex10010cd1

268504273 has 4 divisors (see below), whose sum is σ = 284298660. Its totient is φ = 252709888.

The previous prime is 268504259. The next prime is 268504297. The reversal of 268504273 is 372405862.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 372405862 = 2186202931.

It can be written as a sum of positive squares in 2 ways, for example, as 102171664 + 166332609 = 10108^2 + 12897^2 .

It is a cyclic number.

It is not a de Polignac number, because 268504273 - 217 = 268373201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268504073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7897168 + ... + 7897201.

It is an arithmetic number, because the mean of its divisors is an integer number (71074665).

Almost surely, 2268504273 is an apocalyptic number.

It is an amenable number.

268504273 is a deficient number, since it is larger than the sum of its proper divisors (15794387).

268504273 is a wasteful number, since it uses less digits than its factorization.

268504273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15794386.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 268504273 is about 16386.0999935921. The cubic root of 268504273 is about 645.1346977465.

The spelling of 268504273 in words is "two hundred sixty-eight million, five hundred four thousand, two hundred seventy-three".

Divisors: 1 17 15794369 268504273