Base | Representation |
---|---|
bin | 10000111100100… |
… | …01000111001111 |
3 | 100220111002002012 |
4 | 20132101013033 |
5 | 242342332033 |
6 | 22034451435 |
7 | 3344162510 |
oct | 1036210717 |
9 | 326432065 |
10 | 142152143 |
11 | 73272011 |
12 | 3b733b7b |
13 | 235b1ac3 |
14 | 14c44a07 |
15 | c72e248 |
hex | 87911cf |
142152143 has 16 divisors (see below), whose sum is σ = 170465280. Its totient is φ = 115970400.
The previous prime is 142152139. The next prime is 142152149. The reversal of 142152143 is 341251241.
142152143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 142152143 - 22 = 142152139 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142152149) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7868 + ... + 18606.
It is an arithmetic number, because the mean of its divisors is an integer number (10654080).
Almost surely, 2142152143 is an apocalyptic number.
142152143 is a deficient number, since it is larger than the sum of its proper divisors (28313137).
142152143 is a wasteful number, since it uses less digits than its factorization.
142152143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10838.
The product of its digits is 960, while the sum is 23.
The square root of 142152143 is about 11922.7573572559. The cubic root of 142152143 is about 521.8966034204.
The spelling of 142152143 in words is "one hundred forty-two million, one hundred fifty-two thousand, one hundred forty-three".
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