Base | Representation |
---|---|
bin | 11101001111111001… |
… | …000000001101011101 |
3 | 10000001200021002200222 |
4 | 131033321000031131 |
5 | 1003304202123310 |
6 | 22232144331125 |
7 | 2161151031503 |
oct | 351771001535 |
9 | 100050232628 |
10 | 31405114205 |
11 | 12356406143 |
12 | 6105613aa5 |
13 | 2c6651461a |
14 | 173cccc673 |
15 | c3c17e055 |
hex | 74fe4035d |
31405114205 has 8 divisors (see below), whose sum is σ = 37819305312. Its totient is φ = 25035312528.
The previous prime is 31405114177. The next prime is 31405114211. The reversal of 31405114205 is 50241150413.
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 31405114205 - 214 = 31405097821 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11095799 + ... + 11098628.
It is an arithmetic number, because the mean of its divisors is an integer number (4727413164).
Almost surely, 231405114205 is an apocalyptic number.
It is an amenable number.
31405114205 is a deficient number, since it is larger than the sum of its proper divisors (6414191107).
31405114205 is a wasteful number, since it uses less digits than its factorization.
31405114205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22194715.
The product of its (nonzero) digits is 2400, while the sum is 26.
Adding to 31405114205 its reverse (50241150413), we get a palindrome (81646264618).
The spelling of 31405114205 in words is "thirty-one billion, four hundred five million, one hundred fourteen thousand, two hundred five".
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