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142159282 = 271079641
BaseRepresentation
bin10000111100100…
…10110110110010
3100220111102212121
420132102312302
5242343044112
622034544454
73344222356
oct1036226662
9326442777
10142159282
1173277411
123b73812a
13235b5125
1414c47466
15c731407
hex8792db2

142159282 has 4 divisors (see below), whose sum is σ = 213238926. Its totient is φ = 71079640.

The previous prime is 142159249. The next prime is 142159289. The reversal of 142159282 is 282951241.

142159282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 282951241 = 1505318797.

It can be written as a sum of positive squares in only one way, i.e., 142062561 + 96721 = 11919^2 + 311^2 .

It is a super-2 number, since 2×1421592822 = 40418522917511048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142159289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35539819 + ... + 35539822.

Almost surely, 2142159282 is an apocalyptic number.

142159282 is a deficient number, since it is larger than the sum of its proper divisors (71079644).

142159282 is an equidigital number, since it uses as much as digits as its factorization.

142159282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71079643.

The product of its digits is 11520, while the sum is 34.

The square root of 142159282 is about 11923.0567389407. The cubic root of 142159282 is about 521.9053399694.

The spelling of 142159282 in words is "one hundred forty-two million, one hundred fifty-nine thousand, two hundred eighty-two".

Divisors: 1 2 71079641 142159282