Base | Representation |
---|---|
bin | 11100001011100111… |
… | …111011000100100100 |
3 | 2220002212010101210120 |
4 | 130023213323010210 |
5 | 443433001123040 |
6 | 21522352121540 |
7 | 2120602636332 |
oct | 341347730444 |
9 | 86085111716 |
10 | 30259786020 |
11 | 11918951122 |
12 | 5a45b362b0 |
13 | 2b13152b39 |
14 | 1670b50b52 |
15 | bc18427d0 |
hex | 70b9fb124 |
30259786020 has 24 divisors (see below), whose sum is σ = 84727401024. Its totient is φ = 8069276256.
The previous prime is 30259786019. The next prime is 30259786031. The reversal of 30259786020 is 2068795203.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252164824 + ... + 252164943.
It is an arithmetic number, because the mean of its divisors is an integer number (3530308376).
Almost surely, 230259786020 is an apocalyptic number.
30259786020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30259786020 is an abundant number, since it is smaller than the sum of its proper divisors (54467615004).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30259786020 is a wasteful number, since it uses less digits than its factorization.
30259786020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 504329779 (or 504329777 counting only the distinct ones).
The product of its (nonzero) digits is 181440, while the sum is 42.
The spelling of 30259786020 in words is "thirty billion, two hundred fifty-nine million, seven hundred eighty-six thousand, twenty".
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