Base | Representation |
---|---|
bin | 111010000101… |
… | …1100100011011 |
3 | 2010022022220101 |
4 | 1310023210123 |
5 | 30244043331 |
6 | 3004440231 |
7 | 516605161 |
oct | 164134433 |
9 | 63268811 |
10 | 30456091 |
11 | 16212126 |
12 | a249077 |
13 | 6404773 |
14 | 408b231 |
15 | 2a19061 |
hex | 1d0b91b |
30456091 has 2 divisors, whose sum is σ = 30456092. Its totient is φ = 30456090.
The previous prime is 30456073. The next prime is 30456137. The reversal of 30456091 is 19065403.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30456091 - 211 = 30454043 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30456191) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15228045 + 15228046.
It is an arithmetic number, because the mean of its divisors is an integer number (15228046).
Almost surely, 230456091 is an apocalyptic number.
30456091 is a deficient number, since it is larger than the sum of its proper divisors (1).
30456091 is an equidigital number, since it uses as much as digits as its factorization.
30456091 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3240, while the sum is 28.
The square root of 30456091 is about 5518.7037427280. The cubic root of 30456091 is about 312.2899828352.
It can be divided in two parts, 3045 and 6091, that multiplied together give a triangular number (18547095 = T6090).
The spelling of 30456091 in words is "thirty million, four hundred fifty-six thousand, ninety-one".
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