Base | Representation |
---|---|
bin | 11100111010001101… |
… | …011010010010010101 |
3 | 2222010022210201210102 |
4 | 130322031122102111 |
5 | 1002033042141031 |
6 | 22132112103445 |
7 | 2146143151553 |
oct | 347215322225 |
9 | 88108721712 |
10 | 31041365141 |
11 | 1218a050086 |
12 | 6023834b85 |
13 | 2c090562a7 |
14 | 1706882bd3 |
15 | c1a27b7cb |
hex | 73a35a495 |
31041365141 has 4 divisors (see below), whose sum is σ = 31042706412. Its totient is φ = 31040023872.
The previous prime is 31041365123. The next prime is 31041365161. The reversal of 31041365141 is 14156314013.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14156314013 = 283 ⋅50022311.
It can be written as a sum of positive squares in 2 ways, for example, as 1767866116 + 29273499025 = 42046^2 + 171095^2 .
It is a cyclic number.
It is not a de Polignac number, because 31041365141 - 26 = 31041365077 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 (31041365111) 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, 635300 + ... + 682413.
It is an arithmetic number, because the mean of its divisors is an integer number (7760676603).
Almost surely, 231041365141 is an apocalyptic number.
It is an amenable number.
31041365141 is a deficient number, since it is larger than the sum of its proper divisors (1341271).
31041365141 is a wasteful number, since it uses less digits than its factorization.
31041365141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1341270.
The product of its (nonzero) digits is 4320, while the sum is 29.
Adding to 31041365141 its reverse (14156314013), we get a palindrome (45197679154).
The spelling of 31041365141 in words is "thirty-one billion, forty-one million, three hundred sixty-five thousand, one hundred forty-one".
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