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384630 = 23512821
BaseRepresentation
bin1011101111001110110
3201112121120
41131321312
544302010
612124410
73161241
oct1357166
9645546
10384630
11242a84
12166706
131060bc
14a0258
1578e70
hex5de76

384630 has 16 divisors (see below), whose sum is σ = 923184. Its totient is φ = 102560.

The previous prime is 384623. The next prime is 384641. The reversal of 384630 is 36483.

384630 is nontrivially palindromic in base 9.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 384630.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6381 + ... + 6440.

It is an arithmetic number, because the mean of its divisors is an integer number (57699).

2384630 is an apocalyptic number.

384630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

384630 is an abundant number, since it is smaller than the sum of its proper divisors (538554).

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

384630 is a wasteful number, since it uses less digits than its factorization.

384630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 384630 is about 620.1854561339. The cubic root of 384630 is about 72.7245515080.

The spelling of 384630 in words is "three hundred eighty-four thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 12821 25642 38463 64105 76926 128210 192315 384630