Base | Representation |
---|---|
bin | 11100110011100111… |
… | …000001010011000011 |
3 | 2221211121110012201220 |
4 | 130303213001103003 |
5 | 1001321220404034 |
6 | 22113114530123 |
7 | 2143330041141 |
oct | 346347012303 |
9 | 87747405656 |
10 | 30930638019 |
11 | 121325a2166 |
12 | 5bb2736943 |
13 | 2bbc127c98 |
14 | 16d5c9c591 |
15 | c106a8749 |
hex | 7339c14c3 |
30930638019 has 16 divisors (see below), whose sum is σ = 41927166720. Its totient is φ = 20278732320.
The previous prime is 30930637963. The next prime is 30930638021. The reversal of 30930638019 is 91083603903.
It is not a de Polignac number, because 30930638019 - 28 = 30930637763 is a prime.
It is a super-2 number, since 2×309306380192 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30930638059) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98329 + ... + 267450.
It is an arithmetic number, because the mean of its divisors is an integer number (2620447920).
Almost surely, 230930638019 is an apocalyptic number.
30930638019 is a deficient number, since it is larger than the sum of its proper divisors (10996528701).
30930638019 is a wasteful number, since it uses less digits than its factorization.
30930638019 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 366250.
The product of its (nonzero) digits is 104976, while the sum is 42.
The spelling of 30930638019 in words is "thirty billion, nine hundred thirty million, six hundred thirty-eight thousand, nineteen".
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