Base | Representation |
---|---|
bin | 11100001111001101… |
… | …101110000101110011 |
3 | 2220021001110220110212 |
4 | 130033031232011303 |
5 | 444043411312341 |
6 | 21532343214335 |
7 | 2122233653114 |
oct | 341715560563 |
9 | 86231426425 |
10 | 30320025971 |
11 | 11949956304 |
12 | 5a621473ab |
13 | 2b22785091 |
14 | 1678b5220b |
15 | bc6c915eb |
hex | 70f36e173 |
30320025971 has 2 divisors, whose sum is σ = 30320025972. Its totient is φ = 30320025970.
The previous prime is 30320025959. The next prime is 30320025991. The reversal of 30320025971 is 17952002303.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30320025971 - 234 = 13140156787 is a prime.
It is a super-2 number, since 2×303200259712 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30320025991) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160012985 + 15160012986.
It is an arithmetic number, because the mean of its divisors is an integer number (15160012986).
Almost surely, 230320025971 is an apocalyptic number.
30320025971 is a deficient number, since it is larger than the sum of its proper divisors (1).
30320025971 is an equidigital number, since it uses as much as digits as its factorization.
30320025971 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 11340, while the sum is 32.
The spelling of 30320025971 in words is "thirty billion, three hundred twenty million, twenty-five thousand, nine hundred seventy-one".
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