Base | Representation |
---|---|
bin | 11100001000011011… |
… | …111010001011111011 |
3 | 2212222010111021122202 |
4 | 130020123322023323 |
5 | 443330303230034 |
6 | 21513201540415 |
7 | 2116353233132 |
oct | 341033721373 |
9 | 85863437582 |
10 | 30206305019 |
11 | 118a0743050 |
12 | 5a3004470b |
13 | 2b05049187 |
14 | 16679cc919 |
15 | bbbccb47e |
hex | 7086fa2fb |
30206305019 has 8 divisors (see below), whose sum is σ = 32953637808. Its totient is φ = 27459189760.
The previous prime is 30206305009. The next prime is 30206305039. The reversal of 30206305019 is 91050360203.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30206305019 - 212 = 30206300923 is a prime.
It is a super-2 number, since 2×302063050192 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30206304982 and 30206305000.
It is not an unprimeable number, because it can be changed into a prime (30206305009) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403979 + ... + 472875.
It is an arithmetic number, because the mean of its divisors is an integer number (4119204726).
Almost surely, 230206305019 is an apocalyptic number.
30206305019 is a deficient number, since it is larger than the sum of its proper divisors (2747332789).
30206305019 is a wasteful number, since it uses less digits than its factorization.
30206305019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108765.
The product of its (nonzero) digits is 4860, while the sum is 29.
The spelling of 30206305019 in words is "thirty billion, two hundred six million, three hundred five thousand, nineteen".
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