Search a number
-
+
142879134 = 2323813189
BaseRepresentation
bin10001000010000…
…10100110011110
3100221212000022210
420201002212132
5243034113014
622102221250
73353311146
oct1041024636
9327760283
10142879134
1173719232
123ba24826
13237a7988
1414d93926
15c824859
hex884299e

142879134 has 8 divisors (see below), whose sum is σ = 285758280. Its totient is φ = 47626376.

The previous prime is 142879127. The next prime is 142879147. The reversal of 142879134 is 431978241.

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

142879134 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 142879092 and 142879101.

It is a congruent number.

It is an unprimeable number.

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, 11906589 + ... + 11906600.

It is an arithmetic number, because the mean of its divisors is an integer number (35719785).

Almost surely, 2142879134 is an apocalyptic number.

142879134 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.

142879134 is a wasteful number, since it uses less digits than its factorization.

142879134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23813194.

The product of its digits is 48384, while the sum is 39.

The square root of 142879134 is about 11953.2060134510. The cubic root of 142879134 is about 522.7847813033.

The spelling of 142879134 in words is "one hundred forty-two million, eight hundred seventy-nine thousand, one hundred thirty-four".

Divisors: 1 2 3 6 23813189 47626378 71439567 142879134