Search a number
-
+
486388 = 22729599
BaseRepresentation
bin1110110101111110100
3220201012101
41312233310
5111031023
614231444
74064020
oct1665764
9821171
10486388
11302481
121b5584
13140506
14c9380
15991ad
hex76bf4

486388 has 24 divisors (see below), whose sum is σ = 1008000. Its totient is φ = 200928.

The previous prime is 486379. The next prime is 486389. The reversal of 486388 is 883684.

486388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486389) by changing a digit.

486388 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 513 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (42000).

2486388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 486388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504000).

486388 is an abundant number, since it is smaller than the sum of its proper divisors (521612).

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

486388 is a wasteful number, since it uses less digits than its factorization.

486388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 486388 is about 697.4152278234. The cubic root of 486388 is about 78.6431590522.

The spelling of 486388 in words is "four hundred eighty-six thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 599 812 1198 2396 4193 8386 16772 17371 34742 69484 121597 243194 486388