Base | Representation |
---|---|
bin | 11100001100110101… |
… | …001100011000000000 |
3 | 2220011021020111202110 |
4 | 130030311030120000 |
5 | 444003142320414 |
6 | 21524354215320 |
7 | 2121240052533 |
oct | 341465143000 |
9 | 86137214673 |
10 | 30280041984 |
11 | 11929326795 |
12 | 5a50884540 |
13 | 2b173c590a |
14 | 1673704a1a |
15 | bc34e4459 |
hex | 70cd4c600 |
30280041984 has 80 divisors (see below), whose sum is σ = 80707088880. Its totient is φ = 10088448000.
The previous prime is 30280041983. The next prime is 30280042007. The reversal of 30280041984 is 48914008203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30280041983) 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 7 ways as a sum of consecutive naturals, for example, 4606252 + ... + 4612820.
It is an arithmetic number, because the mean of its divisors is an integer number (1008838611).
Almost surely, 230280041984 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30280041984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40353544440).
30280041984 is an abundant number, since it is smaller than the sum of its proper divisors (50427046896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30280041984 is an equidigital number, since it uses as much as digits as its factorization.
30280041984 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9591 (or 9575 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 39.
The spelling of 30280041984 in words is "thirty billion, two hundred eighty million, forty-one thousand, nine hundred eighty-four".
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