Base | Representation |
---|---|
bin | 11100000001010010… |
… | …100001011100101000 |
3 | 2212122202212200012211 |
4 | 130001102201130220 |
5 | 443104104411010 |
6 | 21453240014504 |
7 | 2113366133131 |
oct | 340122413450 |
9 | 85582780184 |
10 | 30086403880 |
11 | 11839a995a5 |
12 | 59b7a61434 |
13 | 2ab6258260 |
14 | 1655adac88 |
15 | bb14e508a |
hex | 7014a1728 |
30086403880 has 64 divisors (see below), whose sum is σ = 73122336000. Its totient is φ = 11075201280.
The previous prime is 30086403863. The next prime is 30086403923. The reversal of 30086403880 is 8830468003.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 84721 + ... + 259519.
It is an arithmetic number, because the mean of its divisors is an integer number (1142536500).
Almost surely, 230086403880 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 30086403880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36561168000).
30086403880 is an abundant number, since it is smaller than the sum of its proper divisors (43035932120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30086403880 is a wasteful number, since it uses less digits than its factorization.
30086403880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 175154 (or 175150 counting only the distinct ones).
The product of its (nonzero) digits is 110592, while the sum is 40.
The spelling of 30086403880 in words is "thirty billion, eighty-six million, four hundred three thousand, eight hundred eighty".
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