Base | Representation |
---|---|
bin | 1101101001110010011010… |
… | …11101101010110001001111 |
3 | 10221022011220220222101002102 |
4 | 12310321031131222301033 |
5 | 12413344322440201111 |
6 | 143504233102545315 |
7 | 6216045633004544 |
oct | 664711535526117 |
9 | 127264826871072 |
10 | 30023121022031 |
11 | 9625809130125 |
12 | 344a82259823b |
13 | 139a2255c2587 |
14 | 75b1abd7cbcb |
15 | 370e84a4213b |
hex | 1b4e4d76ac4f |
30023121022031 has 2 divisors, whose sum is σ = 30023121022032. Its totient is φ = 30023121022030.
The previous prime is 30023121022021. The next prime is 30023121022051. The reversal of 30023121022031 is 13022012132003.
It is an a-pointer prime, because the next prime (30023121022051) can be obtained adding 30023121022031 to its sum of digits (20).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30023121022031 - 210 = 30023121021007 is a prime.
It is a super-2 number, since 2×300231210220312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30023121021994 and 30023121022012.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30023121022021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011560511015 + 15011560511016.
It is an arithmetic number, because the mean of its divisors is an integer number (15011560511016).
Almost surely, 230023121022031 is an apocalyptic number.
30023121022031 is a deficient number, since it is larger than the sum of its proper divisors (1).
30023121022031 is an equidigital number, since it uses as much as digits as its factorization.
30023121022031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 30023121022031 its reverse (13022012132003), we get a palindrome (43045133154034).
The spelling of 30023121022031 in words is "thirty trillion, twenty-three billion, one hundred twenty-one million, twenty-two thousand, thirty-one".
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