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142739159 = 3110145589
BaseRepresentation
bin10001000001000…
…00011011010111
3100221120220022112
420200200123113
5243020123114
622055221235
73352156103
oct1040403327
9327526275
10142739159
1173633052
123b97781b
1323759054
1414d58903
15c7e813e
hex88206d7

142739159 has 8 divisors (see below), whose sum is σ = 148805760. Its totient is φ = 136764000.

The previous prime is 142739147. The next prime is 142739183. The reversal of 142739159 is 951937241.

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 142739159 - 24 = 142739143 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 (142739459) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19664 + ... + 25925.

It is an arithmetic number, because the mean of its divisors is an integer number (18600720).

Almost surely, 2142739159 is an apocalyptic number.

142739159 is a deficient number, since it is larger than the sum of its proper divisors (6066601).

142739159 is a wasteful number, since it uses less digits than its factorization.

142739159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45721.

The product of its digits is 68040, while the sum is 41.

The square root of 142739159 is about 11947.3494550047. The cubic root of 142739159 is about 522.6140059372.

It can be divided in two parts, 14273 and 9159, that added together give a palindrome (23432).

The spelling of 142739159 in words is "one hundred forty-two million, seven hundred thirty-nine thousand, one hundred fifty-nine".

Divisors: 1 31 101 3131 45589 1413259 4604489 142739159