Base | Representation |
---|---|
bin | 111001111110… |
… | …0100000110011 |
3 | 2010012012022020 |
4 | 1303330200303 |
5 | 30240110134 |
6 | 3003242523 |
7 | 516230316 |
oct | 163744063 |
9 | 63165266 |
10 | 30394419 |
11 | 1617a860 |
12 | a219443 |
13 | 63b2683 |
14 | 407297d |
15 | 2a05b49 |
hex | 1cfc833 |
30394419 has 24 divisors (see below), whose sum is σ = 46978368. Its totient is φ = 17331840.
The previous prime is 30394417. The next prime is 30394423. The reversal of 30394419 is 91449303.
It is not a de Polignac number, because 30394419 - 21 = 30394417 is a prime.
It is a super-2 number, since 2×303944192 = 1847641412695122, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a self number, because there is not a number n which added to its sum of digits gives 30394419.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30394417) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7944 + ... + 11130.
It is an arithmetic number, because the mean of its divisors is an integer number (1957432).
Almost surely, 230394419 is an apocalyptic number.
30394419 is a deficient number, since it is larger than the sum of its proper divisors (16583949).
30394419 is a wasteful number, since it uses less digits than its factorization.
30394419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3235 (or 3218 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 30394419 is about 5513.1133672363. The cubic root of 30394419 is about 312.0790500716.
The spelling of 30394419 in words is "thirty million, three hundred ninety-four thousand, four hundred nineteen".
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