Base | Representation |
---|---|
bin | 111011111010… |
… | …1011101000001 |
3 | 2012010000000111 |
4 | 1313311131001 |
5 | 31020222311 |
6 | 3041151321 |
7 | 531005146 |
oct | 167653501 |
9 | 65100014 |
10 | 31414081 |
11 | 16806956 |
12 | a62b541 |
13 | 667b81a |
14 | 425a3cd |
15 | 2b57d21 |
hex | 1df5741 |
31414081 has 2 divisors, whose sum is σ = 31414082. Its totient is φ = 31414080.
The previous prime is 31414069. The next prime is 31414093. The reversal of 31414081 is 18041413.
It is a balanced prime because it is at equal distance from previous prime (31414069) and next prime (31414093).
It can be written as a sum of positive squares in only one way, i.e., 27248400 + 4165681 = 5220^2 + 2041^2 .
It is a cyclic number.
It is not a de Polignac number, because 31414081 - 213 = 31405889 is a prime.
It is a super-2 number, since 2×314140812 = 1973688970149122, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (31414051) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15707040 + 15707041.
It is an arithmetic number, because the mean of its divisors is an integer number (15707041).
Almost surely, 231414081 is an apocalyptic number.
It is an amenable number.
31414081 is a deficient number, since it is larger than the sum of its proper divisors (1).
31414081 is an equidigital number, since it uses as much as digits as its factorization.
31414081 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 384, while the sum is 22.
The square root of 31414081 is about 5604.8265807249. The cubic root of 31414081 is about 315.5305780492.
Adding to 31414081 its reverse (18041413), we get a palindrome (49455494).
The spelling of 31414081 in words is "thirty-one million, four hundred fourteen thousand, eighty-one".
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