Base | Representation |
---|---|
bin | 11101010000011011… |
… | …000001001101111111 |
3 | 10000002022001010120012 |
4 | 131100123001031333 |
5 | 1003313442444411 |
6 | 22233103413435 |
7 | 2161316600612 |
oct | 352033011577 |
9 | 100068033505 |
10 | 31414031231 |
11 | 12360446690 |
12 | 61085b427b |
13 | 2c6831727b |
14 | 1740170179 |
15 | c3cd4118b |
hex | 7506c137f |
31414031231 has 4 divisors (see below), whose sum is σ = 34269852264. Its totient is φ = 28558210200.
The previous prime is 31414031219. The next prime is 31414031237. The reversal of 31414031231 is 13213041413.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 31414031231 - 214 = 31414014847 is a prime.
It is a super-2 number, since 2×314140312312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31414031197 and 31414031206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31414031237) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 1427910500 + ... + 1427910521.
It is an arithmetic number, because the mean of its divisors is an integer number (8567463066).
Almost surely, 231414031231 is an apocalyptic number.
31414031231 is a deficient number, since it is larger than the sum of its proper divisors (2855821033).
31414031231 is a wasteful number, since it uses less digits than its factorization.
31414031231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2855821032.
The product of its (nonzero) digits is 864, while the sum is 23.
Adding to 31414031231 its reverse (13213041413), we get a palindrome (44627072644).
The spelling of 31414031231 in words is "thirty-one billion, four hundred fourteen million, thirty-one thousand, two hundred thirty-one".
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