Base | Representation |
---|---|
bin | 11011111110011101… |
… | …001111101011101000 |
3 | 2212112110110100220000 |
4 | 123332131033223220 |
5 | 443004423224143 |
6 | 21444421303000 |
7 | 2112251202336 |
oct | 337635175350 |
9 | 85473410800 |
10 | 30038883048 |
11 | 11815191489 |
12 | 59a3b64a60 |
13 | 2aa945a415 |
14 | 164d68ab56 |
15 | bac259bd3 |
hex | 6fe74fae8 |
30038883048 has 80 divisors (see below), whose sum is σ = 86410719780. Its totient is φ = 9742332672.
The previous prime is 30038883041. The next prime is 30038883053. The reversal of 30038883048 is 84038883003.
30038883048 is a `hidden beast` number, since 300 + 38 + 8 + 8 + 304 + 8 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 21674317284 + 8364565764 = 147222^2 + 91458^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30038882994 and 30038883012.
It is not an unprimeable number, because it can be changed into a prime (30038883041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 602461 + ... + 650412.
Almost surely, 230038883048 is an apocalyptic number.
It is an amenable number.
30038883048 is an abundant number, since it is smaller than the sum of its proper divisors (56371836732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30038883048 is a wasteful number, since it uses less digits than its factorization.
30038883048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1252928 (or 1252915 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 45.
Subtracting from 30038883048 its sum of digits (45), we obtain a palindrome (30038883003).
The spelling of 30038883048 in words is "thirty billion, thirty-eight million, eight hundred eighty-three thousand, forty-eight".
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