Base | Representation |
---|---|
bin | 11100010111011111… |
… | …010010110110100000 |
3 | 2220121201200221020020 |
4 | 130113133102312200 |
5 | 444334431210340 |
6 | 21554222513440 |
7 | 2125540650024 |
oct | 342737226640 |
9 | 86551627206 |
10 | 30458850720 |
11 | 11a10255401 |
12 | 5aa0735880 |
13 | 2b454704bc |
14 | 168d36c384 |
15 | bd40649d0 |
hex | 7177d2da0 |
30458850720 has 48 divisors (see below), whose sum is σ = 95945381280. Its totient is φ = 8122360064.
The previous prime is 30458850689. The next prime is 30458850727. The reversal of 30458850720 is 2705885403.
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (30458850727) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31727490 + ... + 31728449.
It is an arithmetic number, because the mean of its divisors is an integer number (1998862110).
Almost surely, 230458850720 is an apocalyptic number.
30458850720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30458850720 is an abundant number, since it is smaller than the sum of its proper divisors (65486530560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30458850720 is a wasteful number, since it uses less digits than its factorization.
30458850720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63455957 (or 63455949 counting only the distinct ones).
The product of its (nonzero) digits is 268800, while the sum is 42.
The spelling of 30458850720 in words is "thirty billion, four hundred fifty-eight million, eight hundred fifty thousand, seven hundred twenty".
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