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814287489 = 3367757977
BaseRepresentation
bin110000100010010…
…000101010000001
32002202020002102220
4300202100222001
53131424144424
6212445001253
726115221001
oct6042205201
92082202386
10814287489
1138870a274
121a8853229
13cc916122
147a208001
154b74a579
hex30890a81

814287489 has 16 divisors (see below), whose sum is σ = 1091228928. Its totient is φ = 540110592.

The previous prime is 814287457. The next prime is 814287499. The reversal of 814287489 is 984782418.

It is not a de Polignac number, because 814287489 - 25 = 814287457 is a prime.

It is a super-3 number, since 3×8142874893 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (814287449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832969 + ... + 833945.

It is an arithmetic number, because the mean of its divisors is an integer number (68201808).

Almost surely, 2814287489 is an apocalyptic number.

It is an amenable number.

814287489 is a deficient number, since it is larger than the sum of its proper divisors (276941439).

814287489 is a wasteful number, since it uses less digits than its factorization.

814287489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its digits is 1032192, while the sum is 51.

The square root of 814287489 is about 28535.7230327181. The cubic root of 814287489 is about 933.8115775086.

The spelling of 814287489 in words is "eight hundred fourteen million, two hundred eighty-seven thousand, four hundred eighty-nine".

Divisors: 1 3 367 757 977 1101 2271 2931 277819 358559 739589 833457 1075677 2218767 271429163 814287489