Base | Representation |
---|---|
bin | 1101101100000101100100… |
… | …10010100010000100111011 |
3 | 10221120201211122021112022102 |
4 | 12312002302102202010323 |
5 | 12421143121213403422 |
6 | 144004420212214015 |
7 | 6224543434233413 |
oct | 666026222420473 |
9 | 127521748245272 |
10 | 30102122012987 |
11 | 965626912a9a2 |
12 | 3461bab90a30b |
13 | 13a480577627b |
14 | 760d44187643 |
15 | 37305a478192 |
hex | 1b60b24a213b |
30102122012987 has 2 divisors, whose sum is σ = 30102122012988. Its totient is φ = 30102122012986.
The previous prime is 30102122012923. The next prime is 30102122013017. The reversal of 30102122012987 is 78921022120103.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30102122012987 - 26 = 30102122012923 is a prime.
It is a super-2 number, since 2×301021220129872 (a number of 28 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30102122012987.
It is not a weakly prime, because it can be changed into another prime (30102122012917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051061006493 + 15051061006494.
It is an arithmetic number, because the mean of its divisors is an integer number (15051061006494).
Almost surely, 230102122012987 is an apocalyptic number.
30102122012987 is a deficient number, since it is larger than the sum of its proper divisors (1).
30102122012987 is an equidigital number, since it uses as much as digits as its factorization.
30102122012987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24192, while the sum is 38.
The spelling of 30102122012987 in words is "thirty trillion, one hundred two billion, one hundred twenty-two million, twelve thousand, nine hundred eighty-seven".
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