Base | Representation |
---|---|
bin | 11011111100110111… |
… | …000110111100101111 |
3 | 2212110121002002020110 |
4 | 123330313012330233 |
5 | 442431044433331 |
6 | 21442023351103 |
7 | 2111504466603 |
oct | 337467067457 |
9 | 85417062213 |
10 | 30012108591 |
11 | 11801064433 |
12 | 5996bb2493 |
13 | 2aa3a4464a |
14 | 1649cbb503 |
15 | ba9c1b946 |
hex | 6fcdc6f2f |
30012108591 has 8 divisors (see below), whose sum is σ = 40041918000. Its totient is φ = 19995185792.
The previous prime is 30012108517. The next prime is 30012108619. The reversal of 30012108591 is 19580121003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30012108591 - 217 = 30011977519 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30012103591) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3216216 + ... + 3225533.
It is an arithmetic number, because the mean of its divisors is an integer number (5005239750).
Almost surely, 230012108591 is an apocalyptic number.
30012108591 is a deficient number, since it is larger than the sum of its proper divisors (10029809409).
30012108591 is a wasteful number, since it uses less digits than its factorization.
30012108591 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6443305.
The product of its (nonzero) digits is 2160, while the sum is 30.
Adding to 30012108591 its reverse (19580121003), we get a palindrome (49592229594).
The spelling of 30012108591 in words is "thirty billion, twelve million, one hundred eight thousand, five hundred ninety-one".
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