Base | Representation |
---|---|
bin | 11011111101111100… |
… | …011011011001000001 |
3 | 2212111212021022002010 |
4 | 123331330123121001 |
5 | 443000222432012 |
6 | 21443513043133 |
7 | 2112115112325 |
oct | 337574333101 |
9 | 85455238063 |
10 | 30030280257 |
11 | 1181034603a |
12 | 59a10b64a9 |
13 | 2aa7737803 |
14 | 164c48b985 |
15 | bab60ac3c |
hex | 6fdf1b641 |
30030280257 has 16 divisors (see below), whose sum is σ = 42186912768. Its totient is φ = 18963819600.
The previous prime is 30030280253. The next prime is 30030280307. The reversal of 30030280257 is 75208203003.
It is not a de Polignac number, because 30030280257 - 22 = 30030280253 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30030280253) 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, 2105619 + ... + 2119832.
It is an arithmetic number, because the mean of its divisors is an integer number (2636682048).
Almost surely, 230030280257 is an apocalyptic number.
It is an amenable number.
30030280257 is a deficient number, since it is larger than the sum of its proper divisors (12156632511).
30030280257 is a wasteful number, since it uses less digits than its factorization.
30030280257 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4225580.
The product of its (nonzero) digits is 10080, while the sum is 30.
The spelling of 30030280257 in words is "thirty billion, thirty million, two hundred eighty thousand, two hundred fifty-seven".
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