Base | Representation |
---|---|
bin | 11100011001110010… |
… | …101100001000110000 |
3 | 2220201102101222121112 |
4 | 130121302230020300 |
5 | 444424324130311 |
6 | 22002123012452 |
7 | 2126520245300 |
oct | 343162541060 |
9 | 86642358545 |
10 | 30497489456 |
11 | 11a30046245 |
12 | 5ab166a128 |
13 | 2b5047b565 |
14 | 1694549600 |
15 | bd764828b |
hex | 719cac230 |
30497489456 has 240 divisors, whose sum is σ = 77586284160. Its totient is φ = 11505715200.
The previous prime is 30497489419. The next prime is 30497489489. The reversal of 30497489456 is 65498479403.
It is a junction number, because it is equal to n+sod(n) for n = 30497489395 and 30497489404.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21017531 + ... + 21018981.
It is an arithmetic number, because the mean of its divisors is an integer number (323276184).
Almost surely, 230497489456 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30497489456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38793142080).
30497489456 is an abundant number, since it is smaller than the sum of its proper divisors (47088794704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30497489456 is a wasteful number, since it uses less digits than its factorization.
30497489456 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1592 (or 1579 counting only the distinct ones).
The product of its (nonzero) digits is 26127360, while the sum is 59.
The spelling of 30497489456 in words is "thirty billion, four hundred ninety-seven million, four hundred eighty-nine thousand, four hundred fifty-six".
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