Base | Representation |
---|---|
bin | 1101110111010011010110… |
… | …10100100110110000000000 |
3 | 10222221120111210100211211110 |
4 | 12323221223110212300000 |
5 | 12444001323434240340 |
6 | 144501430525443320 |
7 | 6264435064601643 |
oct | 673515324466000 |
9 | 128846453324743 |
10 | 30487478430720 |
11 | 9794737849193 |
12 | 3504816a10540 |
13 | 1401c5935a91c |
14 | 77585d5c3a5a |
15 | 37d0b14b2680 |
hex | 1bba6b526c00 |
30487478430720 has 1408 divisors, whose sum is σ = 108921350799360. Its totient is φ = 7243583979520.
The previous prime is 30487478430697. The next prime is 30487478430751. The reversal of 30487478430720 is 2703487478403.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 154758773662 + ... + 154758773858.
It is an arithmetic number, because the mean of its divisors is an integer number (77358913920).
Almost surely, 230487478430720 is an apocalyptic number.
30487478430720 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 30487478430720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54460675399680).
30487478430720 is an abundant number, since it is smaller than the sum of its proper divisors (78433872368640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30487478430720 is a wasteful number, since it uses less digits than its factorization.
30487478430720 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 569 (or 551 counting only the distinct ones).
The product of its (nonzero) digits is 25288704, while the sum is 57.
The spelling of 30487478430720 in words is "thirty trillion, four hundred eighty-seven billion, four hundred seventy-eight million, four hundred thirty thousand, seven hundred twenty".
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