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142125143 = 2913013767
BaseRepresentation
bin10000111100010…
…10100001010111
3100220102201001012
420132022201113
5242341001033
622034122435
73344021006
oct1036124127
9326381035
10142125143
11732537a6
123b72041b
13235a2724
1414c38c3d
15c726248
hex878a857

142125143 has 8 divisors (see below), whose sum is σ = 147178080. Its totient is φ = 137082400.

The previous prime is 142125131. The next prime is 142125161. The reversal of 142125143 is 341521241.

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

It is a cyclic number.

It is not a de Polignac number, because 142125143 - 24 = 142125127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142125163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35846 + ... + 39612.

It is an arithmetic number, because the mean of its divisors is an integer number (18397260).

Almost surely, 2142125143 is an apocalyptic number.

142125143 is a deficient number, since it is larger than the sum of its proper divisors (5052937).

142125143 is a wasteful number, since it uses less digits than its factorization.

142125143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097.

The product of its digits is 960, while the sum is 23.

The square root of 142125143 is about 11921.6250150724. The cubic root of 142125143 is about 521.8635587772.

Adding to 142125143 its reverse (341521241), we get a palindrome (483646384).

The spelling of 142125143 in words is "one hundred forty-two million, one hundred twenty-five thousand, one hundred forty-three".

Divisors: 1 29 1301 3767 37729 109243 4900867 142125143