Base | Representation |
---|---|
bin | 1000010010100101111… |
… | …1111000101011011001 |
3 | 111121122012110001022111 |
4 | 2010221133320223121 |
5 | 4313144104121431 |
6 | 145233112152321 |
7 | 13201360154566 |
oct | 2045137705331 |
9 | 447565401274 |
10 | 142430145241 |
11 | 5544a11623a |
12 | 2372b6986a1 |
13 | 1057b1a3a67 |
14 | 6c7229786d |
15 | 3a8924e7b1 |
hex | 21297f8ad9 |
142430145241 has 4 divisors (see below), whose sum is σ = 143041433652. Its totient is φ = 141818856832.
The previous prime is 142430145233. The next prime is 142430145257. The reversal of 142430145241 is 142541034241.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142541034241 = 67 ⋅2127478123.
It can be written as a sum of positive squares in 2 ways, for example, as 90914310400 + 51515834841 = 301520^2 + 226971^2 .
It is a cyclic number.
It is not a de Polignac number, because 142430145241 - 23 = 142430145233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (142430140241) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305643856 + ... + 305644321.
It is an arithmetic number, because the mean of its divisors is an integer number (35760358413).
Almost surely, 2142430145241 is an apocalyptic number.
It is an amenable number.
142430145241 is a deficient number, since it is larger than the sum of its proper divisors (611288411).
142430145241 is an equidigital number, since it uses as much as digits as its factorization.
142430145241 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 611288410.
The product of its (nonzero) digits is 15360, while the sum is 31.
Adding to 142430145241 its reverse (142541034241), we get a palindrome (284971179482).
The spelling of 142430145241 in words is "one hundred forty-two billion, four hundred thirty million, one hundred forty-five thousand, two hundred forty-one".
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