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142159288 = 2317769911
BaseRepresentation
bin10000111100100…
…10110110111000
3100220111102212211
420132102312320
5242343044123
622034544504
73344222365
oct1036226670
9326442784
10142159288
1173277417
123b738134
13235b512b
1414c4746c
15c73140d
hex8792db8

142159288 has 8 divisors (see below), whose sum is σ = 266548680. Its totient is φ = 71079640.

The previous prime is 142159249. The next prime is 142159289. The reversal of 142159288 is 882951241.

142159288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 142159288.

It is a congruent number.

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, 8884948 + ... + 8884963.

It is an arithmetic number, because the mean of its divisors is an integer number (33318585).

Almost surely, 2142159288 is an apocalyptic number.

It is an amenable number.

142159288 is a deficient number, since it is larger than the sum of its proper divisors (124389392).

142159288 is a wasteful number, since it uses less digits than its factorization.

142159288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17769917 (or 17769913 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 142159288 is about 11923.0569905541. The cubic root of 142159288 is about 521.9053473120.

The spelling of 142159288 in words is "one hundred forty-two million, one hundred fifty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 17769911 35539822 71079644 142159288