Base | Representation |
---|---|
bin | 111010000001… |
… | …0100100000101 |
3 | 2010020110022020 |
4 | 1310002210011 |
5 | 30241403310 |
6 | 3003553353 |
7 | 516362505 |
oct | 164024405 |
9 | 63213266 |
10 | 30419205 |
11 | 16197443 |
12 | a22b859 |
13 | 63c0a3b |
14 | 407ba05 |
15 | 2a0d170 |
hex | 1d02905 |
30419205 has 16 divisors (see below), whose sum is σ = 51534144. Its totient is φ = 15269120.
The previous prime is 30419183. The next prime is 30419219. The reversal of 30419205 is 50291403.
It is not a de Polignac number, because 30419205 - 26 = 30419141 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59391 + ... + 59900.
It is an arithmetic number, because the mean of its divisors is an integer number (3220884).
Almost surely, 230419205 is an apocalyptic number.
It is an amenable number.
30419205 is a deficient number, since it is larger than the sum of its proper divisors (21114939).
30419205 is a wasteful number, since it uses less digits than its factorization.
30419205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119316.
The product of its (nonzero) digits is 1080, while the sum is 24.
The square root of 30419205 is about 5515.3608222853. The cubic root of 30419205 is about 312.1638582910.
It can be divided in two parts, 3041 and 9205, that added together give a triangular number (12246 = T156).
The spelling of 30419205 in words is "thirty million, four hundred nineteen thousand, two hundred five".
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