Base | Representation |
---|---|
bin | 1010111111010111010… |
… | …1011001010011100000 |
3 | 200001100100120122000120 |
4 | 2233311311121103200 |
5 | 11043134322241203 |
6 | 222423122520240 |
7 | 16432560411300 |
oct | 2576565312340 |
9 | 601310518016 |
10 | 188808008928 |
11 | 73089220700 |
12 | 30713506080 |
13 | 14a5c6b2a56 |
14 | 91d1915600 |
15 | 4da0b0db53 |
hex | 2bf5d594e0 |
188808008928 has 432 divisors, whose sum is σ = 643304495232. Its totient is φ = 48299328000.
The previous prime is 188808008911. The next prime is 188808008959. The reversal of 188808008928 is 829800808881.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 38132853 + ... + 38137803.
It is an arithmetic number, because the mean of its divisors is an integer number (1489130776).
Almost surely, 2188808008928 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 188808008928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321652247616).
188808008928 is an abundant number, since it is smaller than the sum of its proper divisors (454496486304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
188808008928 is a wasteful number, since it uses less digits than its factorization.
188808008928 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5067 (or 5041 counting only the distinct ones).
The product of its (nonzero) digits is 4718592, while the sum is 60.
The spelling of 188808008928 in words is "one hundred eighty-eight billion, eight hundred eight million, eight thousand, nine hundred twenty-eight".
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