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142143035 = 5171672271
BaseRepresentation
bin10000111100011…
…10111000111011
3100220110121120212
420132032320323
5242342034120
622034341335
73344124116
oct1036167073
9326417525
10142143035
1173266191
123b72a84b
13235aa908
1414c4157d
15c72b6c5
hex878ee3b

142143035 has 8 divisors (see below), whose sum is σ = 180605376. Its totient is φ = 107025280.

The previous prime is 142143017. The next prime is 142143037. The reversal of 142143035 is 530341241.

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

It is not a de Polignac number, because 142143035 - 28 = 142142779 is a prime.

It is a super-2 number, since 2×1421430352 = 40409284798022450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142143035.

It is not an unprimeable number, because it can be changed into a prime (142143037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836051 + ... + 836220.

It is an arithmetic number, because the mean of its divisors is an integer number (22575672).

Almost surely, 2142143035 is an apocalyptic number.

142143035 is a deficient number, since it is larger than the sum of its proper divisors (38462341).

142143035 is a wasteful number, since it uses less digits than its factorization.

142143035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672293.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 142143035 is about 11922.3753925130. The cubic root of 142143035 is about 521.8854568285.

Adding to 142143035 its reverse (530341241), we get a palindrome (672484276).

The spelling of 142143035 in words is "one hundred forty-two million, one hundred forty-three thousand, thirty-five".

Divisors: 1 5 17 85 1672271 8361355 28428607 142143035