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286830380 = 22514341519
BaseRepresentation
bin10001000110001…
…010111100101100
3201222201111022102
4101012022330230
51041412033010
644243434232
710052006114
oct2106127454
9658644272
10286830380
111379a9a01
1280085978
1347569625
142a146044
151a2abba5
hex1118af2c

286830380 has 12 divisors (see below), whose sum is σ = 602343840. Its totient is φ = 114732144.

The previous prime is 286830373. The next prime is 286830391. The reversal of 286830380 is 83038682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7170740 + ... + 7170779.

It is an arithmetic number, because the mean of its divisors is an integer number (50195320).

Almost surely, 2286830380 is an apocalyptic number.

286830380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

286830380 is an abundant number, since it is smaller than the sum of its proper divisors (315513460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286830380 is a wasteful number, since it uses less digits than its factorization.

286830380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14341528 (or 14341526 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 286830380 is about 16936.0674301917. The cubic root of 286830380 is about 659.4902553183.

The spelling of 286830380 in words is "two hundred eighty-six million, eight hundred thirty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 14341519 28683038 57366076 71707595 143415190 286830380