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240006 = 231317181
BaseRepresentation
bin111010100110000110
3110012020010
4322212012
530140011
65051050
72016504
oct724606
9405203
10240006
11154358
12b6a86
1385320
1463674
154b1a6
hex3a986

240006 has 32 divisors (see below), whose sum is σ = 550368. Its totient is φ = 69120.

The previous prime is 239999. The next prime is 240007. The reversal of 240006 is 600042.

240006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

240006 is a Rhonda number in base 14.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 239973 and 240000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (17199).

2240006 is an apocalyptic number.

240006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 240006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275184).

240006 is an abundant number, since it is smaller than the sum of its proper divisors (310362).

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

240006 is a wasteful number, since it uses less digits than its factorization.

240006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 240006 is about 489.9040722427. The cubic root of 240006 is about 62.1451679868.

Adding to 240006 its reverse (600042), we get a palindrome (840048).

The spelling of 240006 in words is "two hundred forty thousand, six".

Divisors: 1 2 3 6 13 17 26 34 39 51 78 102 181 221 362 442 543 663 1086 1326 2353 3077 4706 6154 7059 9231 14118 18462 40001 80002 120003 240006