Base | Representation |
---|---|
bin | 11100011000001110… |
… | …001001000010001011 |
3 | 2220122120210211222121 |
4 | 130120032021002023 |
5 | 444401102200100 |
6 | 21555342032111 |
7 | 2126050225264 |
oct | 343016110213 |
9 | 86576724877 |
10 | 30471131275 |
11 | 11a17182a22 |
12 | 5aa4878637 |
13 | 2b47b800c0 |
14 | 1690c4796b |
15 | bd518d51a |
hex | 71838908b |
30471131275 has 12 divisors (see below), whose sum is σ = 40690680352. Its totient is φ = 22501758240.
The previous prime is 30471131191. The next prime is 30471131281. The reversal of 30471131275 is 57213117403.
It is not a de Polignac number, because 30471131275 - 219 = 30470606987 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30471131275.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46878339 + ... + 46878988.
Almost surely, 230471131275 is an apocalyptic number.
30471131275 is a deficient number, since it is larger than the sum of its proper divisors (10219549077).
30471131275 is a wasteful number, since it uses less digits than its factorization.
30471131275 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93757350 (or 93757345 counting only the distinct ones).
The product of its (nonzero) digits is 17640, while the sum is 34.
Adding to 30471131275 its reverse (57213117403), we get a palindrome (87684248678).
The spelling of 30471131275 in words is "thirty billion, four hundred seventy-one million, one hundred thirty-one thousand, two hundred seventy-five".
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