Search a number
-
+
6663000 = 233532221
BaseRepresentation
bin11001011010101101011000
3110112111220210
4121122231120
53201204000
6354451120
7110430441
oct31325530
913474823
106663000
113841013
122293aa0
1314c3a06
14c562c8
158b9350
hex65ab58

6663000 has 64 divisors (see below), whose sum is σ = 20797920. Its totient is φ = 1776000.

The previous prime is 6662993. The next prime is 6663029. The reversal of 6663000 is 3666.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890 + ... + 4110.

Almost surely, 26663000 is an apocalyptic number.

6663000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6663000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10398960).

6663000 is an abundant number, since it is smaller than the sum of its proper divisors (14134920).

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

6663000 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (6662999) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (2245).

6663000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2231 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 6663000 is about 2581.2787528665. The cubic root of 6663000 is about 188.1726947940.

Adding to 6663000 its reverse (3666), we get a palindrome (6666666).

The spelling of 6663000 in words is "six million, six hundred sixty-three thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 2221 3000 4442 6663 8884 11105 13326 17768 22210 26652 33315 44420 53304 55525 66630 88840 111050 133260 166575 222100 266520 277625 333150 444200 555250 666300 832875 1110500 1332600 1665750 2221000 3331500 6663000