Search a number
-
+
142885918 = 2717600361
BaseRepresentation
bin10001000010001…
…00010000011110
3100221212100122001
420201010100132
5243034322133
622102312514
73353340010
oct1041042036
9327770561
10142885918
117372333a
123ba2873a
13237aaaa6
1414d961b0
15c82687d
hex884441e

142885918 has 16 divisors (see below), whose sum is σ = 259356384. Its totient is φ = 57634560.

The previous prime is 142885907. The next prime is 142885921. The reversal of 142885918 is 819588241.

It is a happy number.

142885918 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299943 + ... + 300418.

It is an arithmetic number, because the mean of its divisors is an integer number (16209774).

Almost surely, 2142885918 is an apocalyptic number.

142885918 is a deficient number, since it is larger than the sum of its proper divisors (116470466).

142885918 is a wasteful number, since it uses less digits than its factorization.

142885918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600387.

The product of its digits is 184320, while the sum is 46.

The square root of 142885918 is about 11953.4897833227. The cubic root of 142885918 is about 522.7930552332.

The spelling of 142885918 in words is "one hundred forty-two million, eight hundred eighty-five thousand, nine hundred eighteen".

Divisors: 1 2 7 14 17 34 119 238 600361 1200722 4202527 8405054 10206137 20412274 71442959 142885918