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268273689 = 3432079641
BaseRepresentation
bin11111111110110…
…00100000011001
3200200210201022120
433333120200121
51022134224224
642342011453
76435201015
oct1777304031
9620721276
10268273689
11128484aa2
1275a16b89
1343770138
14278b5545
1518843779
hexffd8819

268273689 has 8 divisors (see below), whose sum is σ = 366016992. Its totient is φ = 174689760.

The previous prime is 268273661. The next prime is 268273699. The reversal of 268273689 is 986372862.

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

It is a de Polignac number, because none of the positive numbers 2k-268273689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268273609) 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, 1039692 + ... + 1039949.

It is an arithmetic number, because the mean of its divisors is an integer number (45752124).

Almost surely, 2268273689 is an apocalyptic number.

It is an amenable number.

268273689 is a deficient number, since it is larger than the sum of its proper divisors (97743303).

268273689 is a wasteful number, since it uses less digits than its factorization.

268273689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079687.

The product of its digits is 1741824, while the sum is 51.

The square root of 268273689 is about 16379.0625189600. The cubic root of 268273689 is about 644.9499702797.

The spelling of 268273689 in words is "two hundred sixty-eight million, two hundred seventy-three thousand, six hundred eighty-nine".

Divisors: 1 3 43 129 2079641 6238923 89424563 268273689