Base | Representation |
---|---|
bin | 11011111101100000… |
… | …111011011111101011 |
3 | 2212111100201001211101 |
4 | 123331200323133223 |
5 | 442441401243343 |
6 | 21443054342231 |
7 | 2111666620231 |
oct | 337540733753 |
9 | 85440631741 |
10 | 30023071723 |
11 | 11807272177 |
12 | 599a7ba977 |
13 | 2aa60b26c8 |
14 | 164b532951 |
15 | baab84e4d |
hex | 6fd83b7eb |
30023071723 has 2 divisors, whose sum is σ = 30023071724. Its totient is φ = 30023071722.
The previous prime is 30023071651. The next prime is 30023071751. The reversal of 30023071723 is 32717032003.
It is an a-pointer prime, because the next prime (30023071751) can be obtained adding 30023071723 to its sum of digits (28).
It is a strong prime.
It is an emirp because it is prime and its reverse (32717032003) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30023071723 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30023071691 and 30023071700.
It is not a weakly prime, because it can be changed into another prime (30023071823) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011535861 + 15011535862.
It is an arithmetic number, because the mean of its divisors is an integer number (15011535862).
Almost surely, 230023071723 is an apocalyptic number.
30023071723 is a deficient number, since it is larger than the sum of its proper divisors (1).
30023071723 is an equidigital number, since it uses as much as digits as its factorization.
30023071723 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 5292, while the sum is 28.
It can be divided in two parts, 300230 and 71723, that added together give a triangular number (371953 = T862).
The spelling of 30023071723 in words is "thirty billion, twenty-three million, seventy-one thousand, seven hundred twenty-three".
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