Base | Representation |
---|---|
bin | 11100101000111110… |
… | …000010100110000111 |
3 | 2221101011112201112120 |
4 | 130220332002212013 |
5 | 1000440020421041 |
6 | 22043300421023 |
7 | 2136031510032 |
oct | 345076024607 |
9 | 87334481476 |
10 | 30752123271 |
11 | 12050854411 |
12 | 5b629a7773 |
13 | 2b9115415c |
14 | 16ba2b0019 |
15 | beeb95366 |
hex | 728f82987 |
30752123271 has 16 divisors (see below), whose sum is σ = 41229262848. Its totient is φ = 20388261600.
The previous prime is 30752123249. The next prime is 30752123351. The reversal of 30752123271 is 17232125703.
It is not a de Polignac number, because 30752123271 - 217 = 30751992199 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30752123201) 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 in 15 ways as a sum of consecutive naturals, for example, 3110466 + ... + 3120336.
It is an arithmetic number, because the mean of its divisors is an integer number (2576828928).
Almost surely, 230752123271 is an apocalyptic number.
30752123271 is a deficient number, since it is larger than the sum of its proper divisors (10477139577).
30752123271 is a wasteful number, since it uses less digits than its factorization.
30752123271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15502.
The product of its (nonzero) digits is 17640, while the sum is 33.
Adding to 30752123271 its reverse (17232125703), we get a palindrome (47984248974).
The spelling of 30752123271 in words is "thirty billion, seven hundred fifty-two million, one hundred twenty-three thousand, two hundred seventy-one".
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