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268894689 = 3712804509
BaseRepresentation
bin10000000001110…
…000000111100001
3200201222021011120
4100001300013201
51022314112224
642403202453
76443365350
oct2001600741
9621867146
10268894689
11128869618
1276076429
13439299ab
14279d7997
1518917779
hex100701e1

268894689 has 8 divisors (see below), whose sum is σ = 409744320. Its totient is φ = 153654096.

The previous prime is 268894673. The next prime is 268894693. The reversal of 268894689 is 986498862.

It is a happy number.

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

It is not a de Polignac number, because 268894689 - 24 = 268894673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (268894889) 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, 6402234 + ... + 6402275.

It is an arithmetic number, because the mean of its divisors is an integer number (51218040).

Almost surely, 2268894689 is an apocalyptic number.

It is an amenable number.

268894689 is a deficient number, since it is larger than the sum of its proper divisors (140849631).

268894689 is a wasteful number, since it uses less digits than its factorization.

268894689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12804519.

The product of its digits is 11943936, while the sum is 60.

The square root of 268894689 is about 16398.0086900819. The cubic root of 268894689 is about 645.4472302400.

The spelling of 268894689 in words is "two hundred sixty-eight million, eight hundred ninety-four thousand, six hundred eighty-nine".

Divisors: 1 3 7 21 12804509 38413527 89631563 268894689