Base | Representation |
---|---|
bin | 11100010001101100… |
… | …011110101111111111 |
3 | 2220100221210022201111 |
4 | 130101230132233333 |
5 | 444140040102111 |
6 | 21540431222451 |
7 | 2123250500425 |
oct | 342154365777 |
9 | 86327708644 |
10 | 30361644031 |
11 | 119703a15a4 |
12 | 5a74077a27 |
13 | 2b2b297254 |
14 | 16804a7115 |
15 | bca762a21 |
hex | 711b1ebff |
30361644031 has 2 divisors, whose sum is σ = 30361644032. Its totient is φ = 30361644030.
The previous prime is 30361643999. The next prime is 30361644043. The reversal of 30361644031 is 13044616303.
It is a happy number.
It is a strong prime.
It is an emirp because it is prime and its reverse (13044616303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30361644031 - 25 = 30361643999 is a prime.
It is a super-3 number, since 3×303616440313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a junction number, because it is equal to n+sod(n) for n = 30361643984 and 30361644002.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30361644331) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15180822015 + 15180822016.
It is an arithmetic number, because the mean of its divisors is an integer number (15180822016).
Almost surely, 230361644031 is an apocalyptic number.
30361644031 is a deficient number, since it is larger than the sum of its proper divisors (1).
30361644031 is an equidigital number, since it uses as much as digits as its factorization.
30361644031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 15552, while the sum is 31.
The spelling of 30361644031 in words is "thirty billion, three hundred sixty-one million, six hundred forty-four thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •