Base | Representation |
---|---|
bin | 11100011010100101… |
… | …101110100000111100 |
3 | 2220202100120201021011 |
4 | 130122211232200330 |
5 | 444441240243130 |
6 | 22003321445004 |
7 | 2130042050335 |
oct | 343245564074 |
9 | 86670521234 |
10 | 30510868540 |
11 | 11a37654139 |
12 | 5ab6040764 |
13 | 2b53184189 |
14 | 169622d28c |
15 | bd88dc52a |
hex | 71a96e83c |
30510868540 has 12 divisors (see below), whose sum is σ = 64072823976. Its totient is φ = 12204347408.
The previous prime is 30510868537. The next prime is 30510868543. The reversal of 30510868540 is 4586801503.
It is an interprime number because it is at equal distance from previous prime (30510868537) and next prime (30510868543).
It is a junction number, because it is equal to n+sod(n) for n = 30510868493 and 30510868502.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30510868543) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762771694 + ... + 762771733.
It is an arithmetic number, because the mean of its divisors is an integer number (5339401998).
Almost surely, 230510868540 is an apocalyptic number.
It is an amenable number.
30510868540 is an abundant number, since it is smaller than the sum of its proper divisors (33561955436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30510868540 is a wasteful number, since it uses less digits than its factorization.
30510868540 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1525543436 (or 1525543434 counting only the distinct ones).
The product of its (nonzero) digits is 115200, while the sum is 40.
The spelling of 30510868540 in words is "thirty billion, five hundred ten million, eight hundred sixty-eight thousand, five hundred forty".
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