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142234130 = 2514223413
BaseRepresentation
bin10000111101001…
…01001000010010
3100220122020112202
420132211020102
5242402443010
622040323202
73344653523
oct1036451022
9326566482
10142234130
1173318675
123b773502
132361020c
1414c6684a
15c7486a5
hex87a5212

142234130 has 8 divisors (see below), whose sum is σ = 256021452. Its totient is φ = 56893648.

The previous prime is 142234111. The next prime is 142234163. The reversal of 142234130 is 31432241.

It can be written as a sum of positive squares in 2 ways, for example, as 131859289 + 10374841 = 11483^2 + 3221^2 .

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

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, 7111697 + ... + 7111716.

Almost surely, 2142234130 is an apocalyptic number.

142234130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142234130 is a deficient number, since it is larger than the sum of its proper divisors (113787322).

142234130 is a wasteful number, since it uses less digits than its factorization.

142234130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14223420.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142234130 is about 11926.1951183099. The cubic root of 142234130 is about 521.9969196786.

Adding to 142234130 its reverse (31432241), we get a palindrome (173666371).

The spelling of 142234130 in words is "one hundred forty-two million, two hundred thirty-four thousand, one hundred thirty".

Divisors: 1 2 5 10 14223413 28446826 71117065 142234130