Base | Representation |
---|---|
bin | 11100000100110010… |
… | …101011011110011100 |
3 | 2212210212110001121110 |
4 | 130010302223132130 |
5 | 443214130241322 |
6 | 21503135302020 |
7 | 2115011451021 |
oct | 340462533634 |
9 | 85725401543 |
10 | 30145165212 |
11 | 1186a183888 |
12 | 5a1367a910 |
13 | 2ac5490486 |
14 | 165d835548 |
15 | bb6750c0c |
hex | 704cab79c |
30145165212 has 96 divisors (see below), whose sum is σ = 73030616064. Its totient is φ = 9671270400.
The previous prime is 30145165207. The next prime is 30145165229. The reversal of 30145165212 is 21256154103.
It is a self number, because there is not a number n which added to its sum of digits gives 30145165212.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14265468 + ... + 14267580.
It is an arithmetic number, because the mean of its divisors is an integer number (760735584).
Almost surely, 230145165212 is an apocalyptic number.
It is an amenable number.
30145165212 is an abundant number, since it is smaller than the sum of its proper divisors (42885450852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30145165212 is a wasteful number, since it uses less digits than its factorization.
30145165212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2539 (or 2537 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 30.
It can be divided in two parts, 301451 and 65212, that added together give a palindrome (366663).
The spelling of 30145165212 in words is "thirty billion, one hundred forty-five million, one hundred sixty-five thousand, two hundred twelve".
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