Base | Representation |
---|---|
bin | 1101110010001101000110… |
… | …10101111011101011101000 |
3 | 10222022211102000121112211020 |
4 | 12321012203111323223220 |
5 | 12433114120102043220 |
6 | 144245142324132440 |
7 | 6245664443144151 |
oct | 671064325735350 |
9 | 128284360545736 |
10 | 30312324643560 |
11 | 9727426025493 |
12 | 3496894237120 |
13 | 13bb59474b34b |
14 | 76b1a5296928 |
15 | 37875e484040 |
hex | 1b91a357bae8 |
30312324643560 has 64 divisors (see below), whose sum is σ = 90955410122880. Its totient is φ = 8081647799040.
The previous prime is 30312324643547. The next prime is 30312324643567. The reversal of 30312324643560 is 6534642321303.
It is not an unprimeable number, because it can be changed into a prime (30312324643567) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25011396 + ... + 26195315.
It is an arithmetic number, because the mean of its divisors is an integer number (1421178283170).
Almost surely, 230312324643560 is an apocalyptic number.
30312324643560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30312324643560 is an abundant number, since it is smaller than the sum of its proper divisors (60643085479320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30312324643560 is a wasteful number, since it uses less digits than its factorization.
30312324643560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51211658 (or 51211654 counting only the distinct ones).
The product of its (nonzero) digits is 933120, while the sum is 42.
Adding to 30312324643560 its reverse (6534642321303), we get a palindrome (36846966964863).
The spelling of 30312324643560 in words is "thirty trillion, three hundred twelve billion, three hundred twenty-four million, six hundred forty-three thousand, five hundred sixty".
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