Base | Representation |
---|---|
bin | 11100101101001110… |
… | …111111010101101111 |
3 | 2221120011011221101202 |
4 | 130231032333111233 |
5 | 1001111330101442 |
6 | 22054334200115 |
7 | 2140560626261 |
oct | 345516772557 |
9 | 87504157352 |
10 | 30823675247 |
11 | 12088185482 |
12 | 5b8295303b |
13 | 2ba2c171c1 |
14 | 16c59b7b31 |
15 | c060cac32 |
hex | 72d3bf56f |
30823675247 has 2 divisors, whose sum is σ = 30823675248. Its totient is φ = 30823675246.
The previous prime is 30823675189. The next prime is 30823675291. The reversal of 30823675247 is 74257632803.
It is a strong prime.
It is an emirp because it is prime and its reverse (74257632803) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30823675247 - 226 = 30756566383 is a prime.
It is a super-2 number, since 2×308236752472 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30823675747) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15411837623 + 15411837624.
It is an arithmetic number, because the mean of its divisors is an integer number (15411837624).
Almost surely, 230823675247 is an apocalyptic number.
30823675247 is a deficient number, since it is larger than the sum of its proper divisors (1).
30823675247 is an equidigital number, since it uses as much as digits as its factorization.
30823675247 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1693440, while the sum is 47.
The spelling of 30823675247 in words is "thirty billion, eight hundred twenty-three million, six hundred seventy-five thousand, two hundred forty-seven".
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