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286986441 = 3713666021
BaseRepresentation
bin10001000110110…
…001000011001001
3202000000102101110
4101012301003021
51041432031231
644251040533
710053226110
oct2106610311
9660012343
10286986441
11137aa6185
1280140149
13475c2681
142a186c77
151a2dd046
hex111b10c9

286986441 has 8 divisors (see below), whose sum is σ = 437312704. Its totient is φ = 163992240.

The previous prime is 286986421. The next prime is 286986449. The reversal of 286986441 is 144689682.

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

It is not a de Polignac number, because 286986441 - 213 = 286978249 is a prime.

It is a super-2 number, since 2×2869864412 = 164722434635692962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286986449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832990 + ... + 6833031.

It is an arithmetic number, because the mean of its divisors is an integer number (54664088).

Almost surely, 2286986441 is an apocalyptic number.

286986441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

286986441 is a deficient number, since it is larger than the sum of its proper divisors (150326263).

286986441 is a wasteful number, since it uses less digits than its factorization.

286986441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13666031.

The product of its digits is 663552, while the sum is 48.

The square root of 286986441 is about 16940.6741601390. The cubic root of 286986441 is about 659.6098405687.

The spelling of 286986441 in words is "two hundred eighty-six million, nine hundred eighty-six thousand, four hundred forty-one".

Divisors: 1 3 7 21 13666021 40998063 95662147 286986441