Base | Representation |
---|---|
bin | 1010000101100… |
… | …1100111111111 |
3 | 2221121120121100 |
4 | 2201121213333 |
5 | 41312411033 |
6 | 4110504143 |
7 | 1022426121 |
oct | 241314777 |
9 | 87546540 |
10 | 42310143 |
11 | 21979267 |
12 | 12205053 |
13 | 89c51b5 |
14 | 5895211 |
15 | 3aab513 |
hex | 28599ff |
42310143 has 12 divisors (see below), whose sum is σ = 61952800. Its totient is φ = 27819936.
The previous prime is 42310123. The next prime is 42310157. The reversal of 42310143 is 34101324.
It is not a de Polignac number, because 42310143 - 25 = 42310111 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42310123) 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, 31543 + ... + 32856.
Almost surely, 242310143 is an apocalyptic number.
42310143 is a deficient number, since it is larger than the sum of its proper divisors (19642657).
42310143 is a wasteful number, since it uses less digits than its factorization.
42310143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64478 (or 64475 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 42310143 is about 6504.6247393681. The cubic root of 42310143 is about 348.4561744554.
Adding to 42310143 its reverse (34101324), we get a palindrome (76411467).
The spelling of 42310143 in words is "forty-two million, three hundred ten thousand, one hundred forty-three".
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