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240078 = 2340013
BaseRepresentation
bin111010100111001110
3110012022210
4322213032
530140303
65051250
72016636
oct724716
9405283
10240078
11154413
12b6b26
1385377
14636c6
154b203
hex3a9ce

240078 has 8 divisors (see below), whose sum is σ = 480168. Its totient is φ = 80024.

The previous prime is 240073. The next prime is 240089. The reversal of 240078 is 870042.

It is a happy number.

240078 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

240078 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240073) 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, 20001 + ... + 20012.

It is an arithmetic number, because the mean of its divisors is an integer number (60021).

2240078 is an apocalyptic number.

240078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240078 is a wasteful number, since it uses less digits than its factorization.

240078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40018.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 240078 is about 489.9775505061. The cubic root of 240078 is about 62.1513817270.

The spelling of 240078 in words is "two hundred forty thousand, seventy-eight".

Divisors: 1 2 3 6 40013 80026 120039 240078