Base | Representation |
---|---|
bin | 111001101111… |
… | …0101110100011 |
3 | 2002221222221201 |
4 | 1303132232203 |
5 | 30222204134 |
6 | 3000502031 |
7 | 515211532 |
oct | 163365643 |
9 | 62858851 |
10 | 30272419 |
11 | 160a7131 |
12 | a17a917 |
13 | 636bc98 |
14 | 4040319 |
15 | 29ce914 |
hex | 1cdeba3 |
30272419 has 2 divisors, whose sum is σ = 30272420. Its totient is φ = 30272418.
The previous prime is 30272413. The next prime is 30272447. The reversal of 30272419 is 91427203.
It is an a-pointer prime, because the next prime (30272447) can be obtained adding 30272419 to its sum of digits (28).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 30272419 - 29 = 30271907 is a prime.
It is a super-2 number, since 2×302724192 = 1832838704223122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (30272413) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15136209 + 15136210.
It is an arithmetic number, because the mean of its divisors is an integer number (15136210).
Almost surely, 230272419 is an apocalyptic number.
30272419 is a deficient number, since it is larger than the sum of its proper divisors (1).
30272419 is an equidigital number, since it uses as much as digits as its factorization.
30272419 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3024, while the sum is 28.
The square root of 30272419 is about 5502.0377134295. The cubic root of 30272419 is about 311.6609393300.
The spelling of 30272419 in words is "thirty million, two hundred seventy-two thousand, four hundred nineteen".
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