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284630 = 2528463
BaseRepresentation
bin1000101011111010110
3112110102212
41011133112
533102010
610033422
72263553
oct1053726
9473385
10284630
11184935
12118872
139c728
1475a2a
1559505
hex457d6

284630 has 8 divisors (see below), whose sum is σ = 512352. Its totient is φ = 113848.

The previous prime is 284623. The next prime is 284633. The reversal of 284630 is 36482.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 284596 and 284605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284633) 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 3 ways as a sum of consecutive naturals, for example, 14222 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (64044).

2284630 is an apocalyptic number.

284630 is a deficient number, since it is larger than the sum of its proper divisors (227722).

284630 is a wasteful number, since it uses less digits than its factorization.

284630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28470.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 284630 is about 533.5072633058. The cubic root of 284630 is about 65.7799528117.

The spelling of 284630 in words is "two hundred eighty-four thousand, six hundred thirty".

Divisors: 1 2 5 10 28463 56926 142315 284630