Base | Representation |
---|---|
bin | 11100010101110110… |
… | …010110101001000011 |
3 | 2220112210221022011021 |
4 | 130111312112221003 |
5 | 444310410403443 |
6 | 21551401130311 |
7 | 2125055063101 |
oct | 342566265103 |
9 | 86483838137 |
10 | 30431341123 |
11 | 119a6775aa7 |
12 | 5a93489997 |
13 | 2b3c85ac31 |
14 | 168984ac71 |
15 | bd192d9ed |
hex | 715d96a43 |
30431341123 has 8 divisors (see below), whose sum is σ = 31262951120. Its totient is φ = 29600212320.
The previous prime is 30431341117. The next prime is 30431341141. The reversal of 30431341123 is 32114313403.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30431341123 is a prime.
It is a super-2 number, since 2×304313411232 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30431341103) 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, 9808 + ... + 246898.
It is an arithmetic number, because the mean of its divisors is an integer number (3907868890).
Almost surely, 230431341123 is an apocalyptic number.
30431341123 is a deficient number, since it is larger than the sum of its proper divisors (831609997).
30431341123 is a wasteful number, since it uses less digits than its factorization.
30431341123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 240597.
The product of its (nonzero) digits is 2592, while the sum is 25.
Adding to 30431341123 its reverse (32114313403), we get a palindrome (62545654526).
The spelling of 30431341123 in words is "thirty billion, four hundred thirty-one million, three hundred forty-one thousand, one hundred twenty-three".
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