Base | Representation |
---|---|
bin | 100000001000000000… |
… | …1000000000000000000 |
3 | 20121001220102101000000 |
4 | 1000100001000000000 |
5 | 2112241433034321 |
6 | 51405344000000 |
7 | 4661406543414 |
oct | 1002001000000 |
9 | 217056371000 |
10 | 68988174336 |
11 | 27292031514 |
12 | 11454000000 |
13 | 6675929943 |
14 | 34a64aad44 |
15 | 1bdb895826 |
hex | 1010040000 |
68988174336 has 399 divisors, whose sum is σ = 218330408271. Its totient is φ = 21785739264.
The previous prime is 68988174329. The next prime is 68988174347. The reversal of 68988174336 is 63347188986.
The square root of 68988174336 is 262656.
It is a perfect power (a square), and thus also a powerful number.
Its product of digits (41803776) is a multiple of the sum of its prime divisors (24).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (3) of ones.
It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 3630956535 + ... + 3630956553.
Almost surely, 268988174336 is an apocalyptic number.
68988174336 is the 262656-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68988174336
68988174336 is an abundant number, since it is smaller than the sum of its proper divisors (149342233935).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68988174336 is an frugal number, since it uses more digits than its factorization.
68988174336 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92 (or 24 counting only the distinct ones).
The product of its digits is 41803776, while the sum is 63.
The spelling of 68988174336 in words is "sixty-eight billion, nine hundred eighty-eight million, one hundred seventy-four thousand, three hundred thirty-six".
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