Base | Representation |
---|---|
bin | 1101111111100010111110… |
… | …00000001000100000000000 |
3 | 11000221122122202012002121000 |
4 | 12333301133000020200000 |
5 | 13013121433313011010 |
6 | 145235514351132000 |
7 | 6324053416616100 |
oct | 677613700104000 |
9 | 130848582162530 |
10 | 30770739578880 |
11 | 9893885334334 |
12 | 354b6aa514000 |
13 | 142288c30cb72 |
14 | 7854515c5200 |
15 | 38563e3817c0 |
hex | 1bfc5f008800 |
30770739578880 has 4608 divisors, whose sum is σ = 145299605068800. Its totient is φ = 6121410527232.
The previous prime is 30770739578879. The next prime is 30770739578893. The reversal of 30770739578880 is 8887593707703.
It is a tau number, because it is divible by the number of its divisors (4608).
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a junction number, because it is equal to n+sod(n) for n = 30770739578799 and 30770739578808.
It is an unprimeable number.
It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 195991971762 + ... + 195991971918.
It is an arithmetic number, because the mean of its divisors is an integer number (31532032350).
Almost surely, 230770739578880 is an apocalyptic number.
30770739578880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30770739578880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72649802534400).
30770739578880 is an abundant number, since it is smaller than the sum of its proper divisors (114528865489920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30770739578880 is a wasteful number, since it uses less digits than its factorization.
30770739578880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 284 (or 251 counting only the distinct ones).
The product of its (nonzero) digits is 497871360, while the sum is 72.
The spelling of 30770739578880 in words is "thirty trillion, seven hundred seventy billion, seven hundred thirty-nine million, five hundred seventy-eight thousand, eight hundred eighty".
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