Base | Representation |
---|---|
bin | 11011111100011001… |
… | …001000100110000100 |
3 | 2212110001021212200000 |
4 | 123330121020212010 |
5 | 442422042013022 |
6 | 21441143121300 |
7 | 2111350632321 |
oct | 337431104604 |
9 | 85401255600 |
10 | 30004251012 |
11 | 117a768796a |
12 | 5994443230 |
13 | 2aa2222ca8 |
14 | 1648c33b48 |
15 | ba91b86ac |
hex | 6fc648984 |
30004251012 has 36 divisors (see below), whose sum is σ = 78653121456. Its totient is φ = 10001416680.
The previous prime is 30004250977. The next prime is 30004251049. The reversal of 30004251012 is 21015240003.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×300042510122 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15433314 + ... + 15435257.
Almost surely, 230004251012 is an apocalyptic number.
It is an amenable number.
30004251012 is an abundant number, since it is smaller than the sum of its proper divisors (48648870444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30004251012 is a wasteful number, since it uses less digits than its factorization.
30004251012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30868590 (or 30868576 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
Adding to 30004251012 its reverse (21015240003), we get a palindrome (51019491015).
The spelling of 30004251012 in words is "thirty billion, four million, two hundred fifty-one thousand, twelve".
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