Base | Representation |
---|---|
bin | 11100101110110001… |
… | …011110100100000000 |
3 | 2221121221202122001000 |
4 | 130232301132210000 |
5 | 1001134432240443 |
6 | 22101055412000 |
7 | 2141323236360 |
oct | 345661364400 |
9 | 87557678030 |
10 | 30849493248 |
11 | 120a0809972 |
12 | 5b8b524000 |
13 | 2ba8386822 |
14 | 16c91b89a0 |
15 | c084ca8d3 |
hex | 72ec5e900 |
30849493248 has 144 divisors (see below), whose sum is σ = 104260024960. Its totient is φ = 8814127104.
The previous prime is 30849493189. The next prime is 30849493249. The reversal of 30849493248 is 84239494803.
30849493248 is a `hidden beast` number, since 30 + 84 + 9 + 493 + 2 + 48 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 30849493194 and 30849493203.
It is not an unprimeable number, because it can be changed into a prime (30849493249) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270415 + ... + 367182.
Almost surely, 230849493248 is an apocalyptic number.
It is an amenable number.
30849493248 is an abundant number, since it is smaller than the sum of its proper divisors (73410531712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30849493248 is an equidigital number, since it uses as much as digits as its factorization.
30849493248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 637629 (or 637609 counting only the distinct ones).
The product of its (nonzero) digits is 5971968, while the sum is 54.
The spelling of 30849493248 in words is "thirty billion, eight hundred forty-nine million, four hundred ninety-three thousand, two hundred forty-eight".
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