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142159486 = 2727331979
BaseRepresentation
bin10000111100100…
…10111001111110
3100220111110011011
420132102321332
5242343100421
622034545434
73344223100
oct1036227176
9326443134
10142159486
1173277587
123b73827a
13235b5251
1414c47570
15c7314e1
hex8792e7e

142159486 has 24 divisors (see below), whose sum is σ = 248517720. Its totient is φ = 60811632.

The previous prime is 142159483. The next prime is 142159499. The reversal of 142159486 is 684951241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142159483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70845 + ... + 72823.

It is an arithmetic number, because the mean of its divisors is an integer number (10354905).

Almost surely, 2142159486 is an apocalyptic number.

142159486 is a deficient number, since it is larger than the sum of its proper divisors (106358234).

142159486 is a wasteful number, since it uses less digits than its factorization.

142159486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2721 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 142159486 is about 11923.0652937909. The cubic root of 142159486 is about 521.9055896158.

The spelling of 142159486 in words is "one hundred forty-two million, one hundred fifty-nine thousand, four hundred eighty-six".

Divisors: 1 2 7 14 49 98 733 1466 1979 3958 5131 10262 13853 27706 35917 71834 96971 193942 1450607 2901214 10154249 20308498 71079743 142159486