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142118026 = 2193336761
BaseRepresentation
bin10000111100010…
…00110010001010
3100220102100021121
420132020302022
5242340234101
622034025454
73343661161
oct1036106212
9326370247
10142118026
1173249416
123b71828a
132359c40b
1414c363d8
15c7240a1
hex8788c8a

142118026 has 8 divisors (see below), whose sum is σ = 213293124. Its totient is φ = 71020320.

The previous prime is 142118023. The next prime is 142118027. The reversal of 142118026 is 620811241.

It can be written as a sum of positive squares in 2 ways, for example, as 132227001 + 9891025 = 11499^2 + 3145^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142118021) 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 3 ways as a sum of consecutive naturals, for example, 14515 + ... + 22246.

Almost surely, 2142118026 is an apocalyptic number.

142118026 is a deficient number, since it is larger than the sum of its proper divisors (71175098).

142118026 is a wasteful number, since it uses less digits than its factorization.

142118026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38696.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 142118026 is about 11921.3265201487. The cubic root of 142118026 is about 521.8548477571.

Adding to 142118026 its reverse (620811241), we get a palindrome (762929267).

The spelling of 142118026 in words is "one hundred forty-two million, one hundred eighteen thousand, twenty-six".

Divisors: 1 2 1933 3866 36761 73522 71059013 142118026