Base | Representation |
---|---|
bin | 11100001011011000… |
… | …001000000011001010 |
3 | 2220002120100000012210 |
4 | 130023120020003022 |
5 | 443430421113444 |
6 | 21522123245550 |
7 | 2120522511120 |
oct | 341330100312 |
9 | 86076300183 |
10 | 30255644874 |
11 | 11916582894 |
12 | 5a446798b6 |
13 | 2b12332c60 |
14 | 1670393910 |
15 | bc12c57b9 |
hex | 70b6080ca |
30255644874 has 64 divisors (see below), whose sum is σ = 75312357120. Its totient is φ = 7889840640.
The previous prime is 30255644873. The next prime is 30255644893. The reversal of 30255644874 is 47844655203.
It is not an unprimeable number, because it can be changed into a prime (30255644873) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262717 + ... + 359904.
It is an arithmetic number, because the mean of its divisors is an integer number (1176755580).
Almost surely, 230255644874 is an apocalyptic number.
30255644874 is an abundant number, since it is smaller than the sum of its proper divisors (45056712246).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30255644874 is a wasteful number, since it uses less digits than its factorization.
30255644874 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 622735.
The product of its (nonzero) digits is 3225600, while the sum is 48.
The spelling of 30255644874 in words is "thirty billion, two hundred fifty-five million, six hundred forty-four thousand, eight hundred seventy-four".
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