Base | Representation |
---|---|
bin | 1101110001011111101111… |
… | …00110110010010111111100 |
3 | 10222020111112121022111201002 |
4 | 12320233313212302113330 |
5 | 12432214224421404002 |
6 | 144230033424305432 |
7 | 6244143044544236 |
oct | 670576746622774 |
9 | 128214477274632 |
10 | 30287968544252 |
11 | 97180677015a1 |
12 | 3492017472278 |
13 | 13b91b2741873 |
14 | 769d34643256 |
15 | 377cd60a2002 |
hex | 1b8bf79b25fc |
30287968544252 has 12 divisors (see below), whose sum is σ = 53130446017320. Its totient is φ = 15107841110736.
The previous prime is 30287968544219. The next prime is 30287968544257. The reversal of 30287968544252 is 25244586978203.
It is a happy number.
It is a super-2 number, since 2×302879685442522 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30287968544257) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9035788463 + ... + 9035791814.
It is an arithmetic number, because the mean of its divisors is an integer number (4427537168110).
Almost surely, 230287968544252 is an apocalyptic number.
It is an amenable number.
30287968544252 is a deficient number, since it is larger than the sum of its proper divisors (22842477473068).
30287968544252 is a wasteful number, since it uses less digits than its factorization.
30287968544252 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18071580700 (or 18071580698 counting only the distinct ones).
The product of its (nonzero) digits is 232243200, while the sum is 65.
The spelling of 30287968544252 in words is "thirty trillion, two hundred eighty-seven billion, nine hundred sixty-eight million, five hundred forty-four thousand, two hundred fifty-two".
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