Base | Representation |
---|---|
bin | 11011111100110100… |
… | …001001001011110000 |
3 | 2212110112121121000100 |
4 | 123330310021023300 |
5 | 442430400100222 |
6 | 21441554552400 |
7 | 2111465051514 |
oct | 337464111360 |
9 | 85415547010 |
10 | 30011331312 |
11 | 11800683456 |
12 | 5996898700 |
13 | 2aa3831911 |
14 | 1649b58144 |
15 | ba9b164ac |
hex | 6fcd092f0 |
30011331312 has 60 divisors (see below), whose sum is σ = 84027692320. Its totient is φ = 9999293184.
The previous prime is 30011331289. The next prime is 30011331313. The reversal of 30011331312 is 21313311003.
It is a happy number.
30011331312 is a `hidden beast` number, since 300 + 1 + 1 + 331 + 31 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30011331313) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283764 + ... + 374892.
Almost surely, 230011331312 is an apocalyptic number.
It is an amenable number.
30011331312 is an abundant number, since it is smaller than the sum of its proper divisors (54016361008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30011331312 is a wasteful number, since it uses less digits than its factorization.
30011331312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 93430 (or 93421 counting only the distinct ones).
The product of its (nonzero) digits is 162, while the sum is 18.
Adding to 30011331312 its reverse (21313311003), we get a palindrome (51324642315).
The spelling of 30011331312 in words is "thirty billion, eleven million, three hundred thirty-one thousand, three hundred twelve".
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