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286449468 = 22323870789
BaseRepresentation
bin10001000100101…
…101111100111100
3201222000010210120
4101010231330330
51041312340333
644231334540
710045531434
oct2104557474
9658003716
10286449468
111377697a8
127bb21450
1347465136
142a0872c4
151a233db3
hex1112df3c

286449468 has 12 divisors (see below), whose sum is σ = 668382120. Its totient is φ = 95483152.

The previous prime is 286449461. The next prime is 286449469. The reversal of 286449468 is 864944682.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 286449468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286449461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11935383 + ... + 11935406.

It is an arithmetic number, because the mean of its divisors is an integer number (55698510).

Almost surely, 2286449468 is an apocalyptic number.

It is an amenable number.

286449468 is an abundant number, since it is smaller than the sum of its proper divisors (381932652).

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

286449468 is a wasteful number, since it uses less digits than its factorization.

286449468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23870796 (or 23870794 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 51.

The square root of 286449468 is about 16924.8181083284. The cubic root of 286449468 is about 659.1981906773.

The spelling of 286449468 in words is "two hundred eighty-six million, four hundred forty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 23870789 47741578 71612367 95483156 143224734 286449468