Base | Representation |
---|---|
bin | 100001010101000100… |
… | …1101000111000110111 |
3 | 20211202010100112121021 |
4 | 1002222021220320313 |
5 | 2133040434131411 |
6 | 52514122002011 |
7 | 5112450032422 |
oct | 1025211507067 |
9 | 224663315537 |
10 | 71574130231 |
11 | 2839980444a |
12 | 11a56046307 |
13 | 69985c3366 |
14 | 366dad49b9 |
15 | 1cdd8eea71 |
hex | 10aa268e37 |
71574130231 has 2 divisors, whose sum is σ = 71574130232. Its totient is φ = 71574130230.
The previous prime is 71574130193. The next prime is 71574130333. The reversal of 71574130231 is 13203147517.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 71574130231 - 29 = 71574129719 is a prime.
It is a super-2 number, since 2×715741302312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (71574130531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35787065115 + 35787065116.
It is an arithmetic number, because the mean of its divisors is an integer number (35787065116).
Almost surely, 271574130231 is an apocalyptic number.
71574130231 is a deficient number, since it is larger than the sum of its proper divisors (1).
71574130231 is an equidigital number, since it uses as much as digits as its factorization.
71574130231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17640, while the sum is 34.
Adding to 71574130231 its reverse (13203147517), we get a palindrome (84777277748).
The spelling of 71574130231 in words is "seventy-one billion, five hundred seventy-four million, one hundred thirty thousand, two hundred thirty-one".
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