Base | Representation |
---|---|
bin | 11011111110011101… |
… | …001111101011000100 |
3 | 2212112110110100211200 |
4 | 123332131033223010 |
5 | 443004423224022 |
6 | 21444421302500 |
7 | 2112251202255 |
oct | 337635175304 |
9 | 85473410750 |
10 | 30038883012 |
11 | 11815191456 |
12 | 59a3b64a30 |
13 | 2aa945a3b8 |
14 | 164d68ab2c |
15 | bac259bac |
hex | 6fe74fac4 |
30038883012 has 72 divisors (see below), whose sum is σ = 76183456440. Its totient is φ = 9979822080.
The previous prime is 30038883001. The next prime is 30038883041. The reversal of 30038883012 is 21038883003.
It can be written as a sum of positive squares in 4 ways, for example, as 7854567876 + 22184315136 = 88626^2 + 148944^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26052228 + ... + 26053380.
Almost surely, 230038883012 is an apocalyptic number.
It is an amenable number.
30038883012 is an abundant number, since it is smaller than the sum of its proper divisors (46144573428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30038883012 is a wasteful number, since it uses less digits than its factorization.
30038883012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2933 (or 2928 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
Subtracting from 30038883012 its reverse (21038883003), we obtain a palindrome (9000000009).
The spelling of 30038883012 in words is "thirty billion, thirty-eight million, eight hundred eighty-three thousand, twelve".
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