Base | Representation |
---|---|
bin | 11100101011011111… |
… | …010000111111111110 |
3 | 2221111010001222002200 |
4 | 130223133100333332 |
5 | 1001031330344304 |
6 | 22051410332330 |
7 | 2140053655155 |
oct | 345337207776 |
9 | 87433058080 |
10 | 30794387454 |
11 | 120726a1096 |
12 | 5b74b8a0a6 |
13 | 2b99b3144c |
14 | 16c1b5259c |
15 | c03742e39 |
hex | 72b7d0ffe |
30794387454 has 48 divisors (see below), whose sum is σ = 68552198208. Its totient is φ = 9983324736.
The previous prime is 30794387423. The next prime is 30794387471. The reversal of 30794387454 is 45478349703.
30794387454 is a `hidden beast` number, since 3 + 0 + 79 + 43 + 87 + 454 = 666.
It is a self number, because there is not a number n which added to its sum of digits gives 30794387454.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1941484 + ... + 1957280.
It is an arithmetic number, because the mean of its divisors is an integer number (1428170796).
Almost surely, 230794387454 is an apocalyptic number.
30794387454 is an abundant number, since it is smaller than the sum of its proper divisors (37757810754).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30794387454 is a wasteful number, since it uses less digits than its factorization.
30794387454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18769 (or 18766 counting only the distinct ones).
The product of its (nonzero) digits is 10160640, while the sum is 54.
The spelling of 30794387454 in words is "thirty billion, seven hundred ninety-four million, three hundred eighty-seven thousand, four hundred fifty-four".
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