Base | Representation |
---|---|
bin | 11100100110010101… |
… | …011010010110101000 |
3 | 2221021002100212122111 |
4 | 130212111122112220 |
5 | 1000342211340443 |
6 | 22035041132104 |
7 | 2134653666310 |
oct | 344625322650 |
9 | 87232325574 |
10 | 30707918248 |
11 | 12028901537 |
12 | 5b5002a034 |
13 | 2b84c47637 |
14 | 16b4484440 |
15 | bead6269d |
hex | 72655a5a8 |
30707918248 has 32 divisors (see below), whose sum is σ = 67925352960. Its totient is φ = 12736002240.
The previous prime is 30707918243. The next prime is 30707918281. The reversal of 30707918248 is 84281970703.
It is not an unprimeable number, because it can be changed into a prime (30707918243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8842711 + ... + 8846182.
It is an arithmetic number, because the mean of its divisors is an integer number (2122667280).
Almost surely, 230707918248 is an apocalyptic number.
It is an amenable number.
30707918248 is an abundant number, since it is smaller than the sum of its proper divisors (37217434712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30707918248 is a wasteful number, since it uses less digits than its factorization.
30707918248 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17688937 (or 17688933 counting only the distinct ones).
The product of its (nonzero) digits is 677376, while the sum is 49.
The spelling of 30707918248 in words is "thirty billion, seven hundred seven million, nine hundred eighteen thousand, two hundred forty-eight".
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