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142140159 = 32719118747
BaseRepresentation
bin10000111100011…
…10001011111111
3100220110110122100
420132032023333
5242341441114
622034320143
73344112540
oct1036161377
9326413570
10142140159
1173264007
123b729053
13235a9505
1414c404c7
15c72a909
hex878e2ff

142140159 has 24 divisors (see below), whose sum is σ = 246995840. Its totient is φ = 76947408.

The previous prime is 142140151. The next prime is 142140169. The reversal of 142140159 is 951041241.

It is not a de Polignac number, because 142140159 - 23 = 142140151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142140151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58177 + ... + 60570.

Almost surely, 2142140159 is an apocalyptic number.

142140159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

142140159 is a deficient number, since it is larger than the sum of its proper divisors (104855681).

142140159 is a wasteful number, since it uses less digits than its factorization.

142140159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118779 (or 118776 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 142140159 is about 11922.2547783546. The cubic root of 142140159 is about 521.8819370108.

The spelling of 142140159 in words is "one hundred forty-two million, one hundred forty thousand, one hundred fifty-nine".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 118747 356241 831229 1068723 2256193 2493687 6768579 7481061 15793351 20305737 47380053 142140159