Base | Representation |
---|---|
bin | 11100100110100110… |
… | …010100100100110010 |
3 | 2221021101201002021110 |
4 | 130212212110210302 |
5 | 1000344330213101 |
6 | 22035320134150 |
7 | 2135036451000 |
oct | 344646244462 |
9 | 87241632243 |
10 | 30712351026 |
11 | 12030359995 |
12 | 5b51607356 |
13 | 2b85b3a196 |
14 | 16b4cb9a70 |
15 | beb43acd6 |
hex | 726994932 |
30712351026 has 128 divisors (see below), whose sum is σ = 72754329600. Its totient is φ = 8638660800.
The previous prime is 30712351009. The next prime is 30712351067. The reversal of 30712351026 is 62015321703.
It is a junction number, because it is equal to n+sod(n) for n = 30712350984 and 30712351002.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46463136 + ... + 46463796.
It is an arithmetic number, because the mean of its divisors is an integer number (568393200).
Almost surely, 230712351026 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30712351026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36377164800).
30712351026 is an abundant number, since it is smaller than the sum of its proper divisors (42041978574).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30712351026 is a wasteful number, since it uses less digits than its factorization.
30712351026 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1005 (or 991 counting only the distinct ones).
The product of its (nonzero) digits is 7560, while the sum is 30.
Adding to 30712351026 its reverse (62015321703), we get a palindrome (92727672729).
The spelling of 30712351026 in words is "thirty billion, seven hundred twelve million, three hundred fifty-one thousand, twenty-six".
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