Base | Representation |
---|---|
bin | 10010110010001… |
… | …000000100011111 |
3 | 210221222021021210 |
4 | 102302020010133 |
5 | 1121133131033 |
6 | 51134155503 |
7 | 10544363526 |
oct | 2262100437 |
9 | 727867253 |
10 | 315130143 |
11 | 151978a39 |
12 | 89652b93 |
13 | 50397753 |
14 | 2dbd14bd |
15 | 1c9ebd63 |
hex | 12c8811f |
315130143 has 16 divisors (see below), whose sum is σ = 443072000. Its totient is φ = 198676800.
The previous prime is 315130133. The next prime is 315130157. The reversal of 315130143 is 341031513.
It is not a de Polignac number, because 315130143 - 25 = 315130111 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 (315130133) 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, 29658 + ... + 38856.
It is an arithmetic number, because the mean of its divisors is an integer number (27692000).
Almost surely, 2315130143 is an apocalyptic number.
315130143 is a deficient number, since it is larger than the sum of its proper divisors (127941857).
315130143 is a wasteful number, since it uses less digits than its factorization.
315130143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9822.
The product of its (nonzero) digits is 540, while the sum is 21.
The square root of 315130143 is about 17751.9053343578. The cubic root of 315130143 is about 680.5029029222.
Adding to 315130143 its reverse (341031513), we get a palindrome (656161656).
The spelling of 315130143 in words is "three hundred fifteen million, one hundred thirty thousand, one hundred forty-three".
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