Base | Representation |
---|---|
bin | 10001000010000… |
… | …00100011010101 |
3 | 100221211120210221 |
4 | 20201000203111 |
5 | 243033330431 |
6 | 22102114341 |
7 | 3353244526 |
oct | 1041004325 |
9 | 327746727 |
10 | 142870741 |
11 | 737129a2 |
12 | 3ba1b9b1 |
13 | 237a3c00 |
14 | 14d9084d |
15 | c822111 |
hex | 88408d5 |
142870741 has 12 divisors (see below), whose sum is σ = 158006592. Its totient is φ = 129067536.
The previous prime is 142870699. The next prime is 142870751. The reversal of 142870741 is 147078241.
It is not a de Polignac number, because 142870741 - 217 = 142739669 is a prime.
It is a Duffinian number.
It is a nialpdrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 142870697 and 142870706.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142870751) 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, 1051 + ... + 16936.
It is an arithmetic number, because the mean of its divisors is an integer number (13167216).
Almost surely, 2142870741 is an apocalyptic number.
It is an amenable number.
142870741 is a deficient number, since it is larger than the sum of its proper divisors (15135851).
142870741 is a wasteful number, since it uses less digits than its factorization.
142870741 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18060 (or 18047 counting only the distinct ones).
The product of its (nonzero) digits is 12544, while the sum is 34.
The square root of 142870741 is about 11952.8549309360. The cubic root of 142870741 is about 522.7745446357.
The spelling of 142870741 in words is "one hundred forty-two million, eight hundred seventy thousand, seven hundred forty-one".
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