Base | Representation |
---|---|
bin | 11011111111100010… |
… | …111010011101101001 |
3 | 2212120201211020020200 |
4 | 123333202322131221 |
5 | 443024112134332 |
6 | 21450312542413 |
7 | 2112562345620 |
oct | 337742723551 |
9 | 85521736220 |
10 | 30057146217 |
11 | 1182452590a |
12 | 59aa0b1a09 |
13 | 2ab0183127 |
14 | 1651c826b7 |
15 | badb6617c |
hex | 6ff8ba769 |
30057146217 has 48 divisors (see below), whose sum is σ = 50346616320. Its totient is φ = 16923810816.
The previous prime is 30057146149. The next prime is 30057146279. The reversal of 30057146217 is 71264175003.
It is a happy number.
30057146217 is a `hidden beast` number, since 30 + 0 + 571 + 46 + 2 + 17 = 666.
It is not a de Polignac number, because 30057146217 - 212 = 30057142121 is a prime.
It is a super-2 number, since 2×300571462172 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30057141217) 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 47 ways as a sum of consecutive naturals, for example, 5962384 + ... + 5967422.
It is an arithmetic number, because the mean of its divisors is an integer number (1048887840).
Almost surely, 230057146217 is an apocalyptic number.
It is an amenable number.
30057146217 is a deficient number, since it is larger than the sum of its proper divisors (20289470103).
30057146217 is a wasteful number, since it uses less digits than its factorization.
30057146217 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6422 (or 6419 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 36.
The spelling of 30057146217 in words is "thirty billion, fifty-seven million, one hundred forty-six thousand, two hundred seventeen".
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