Base | Representation |
---|---|
bin | 11100011010010111… |
… | …011001011111011001 |
3 | 2220202002111212211012 |
4 | 130122113121133121 |
5 | 444434310044114 |
6 | 22003105143305 |
7 | 2126665114454 |
oct | 343227313731 |
9 | 86662455735 |
10 | 30507112409 |
11 | 11a355190a4 |
12 | 5ab492ab35 |
13 | 2b5246a607 |
14 | 169593249b |
15 | bd83e963e |
hex | 71a5d97d9 |
30507112409 has 2 divisors, whose sum is σ = 30507112410. Its totient is φ = 30507112408.
The previous prime is 30507112343. The next prime is 30507112423. The reversal of 30507112409 is 90421170503.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22903795600 + 7603316809 = 151340^2 + 87197^2 .
It is a cyclic number.
It is not a de Polignac number, because 30507112409 - 228 = 30238676953 is a prime.
It is not a weakly prime, because it can be changed into another prime (30507114409) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15253556204 + 15253556205.
It is an arithmetic number, because the mean of its divisors is an integer number (15253556205).
Almost surely, 230507112409 is an apocalyptic number.
It is an amenable number.
30507112409 is a deficient number, since it is larger than the sum of its proper divisors (1).
30507112409 is an equidigital number, since it uses as much as digits as its factorization.
30507112409 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7560, while the sum is 32.
The spelling of 30507112409 in words is "thirty billion, five hundred seven million, one hundred twelve thousand, four hundred nine".
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