Base | Representation |
---|---|
bin | 100000000111100000… |
… | …0111000010000000000 |
3 | 20121000201210101102221 |
4 | 1000033000320100000 |
5 | 2112223132143001 |
6 | 51403543420424 |
7 | 4661113634614 |
oct | 1001700702000 |
9 | 217021711387 |
10 | 68971365376 |
11 | 272835a0711 |
12 | 1144a454714 |
13 | 66722c2b04 |
14 | 34a4173344 |
15 | 1bda1751a1 |
hex | 100f038400 |
68971365376 has 99 divisors (see below), whose sum is σ = 143299995501. Its totient is φ = 33178865664.
The previous prime is 68971365371. The next prime is 68971365413. The reversal of 68971365376 is 67356317986.
The square root of 68971365376 is 262624.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 36166910976 + 32804454400 = 190176^2 + 181120^2 .
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68971365371) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 243714931 + ... + 243715213.
Almost surely, 268971365376 is an apocalyptic number.
68971365376 is the 262624-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68971365376
68971365376 is an abundant number, since it is smaller than the sum of its proper divisors (74328630125).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68971365376 is an frugal number, since it uses more digits than its factorization.
68971365376 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 644 (or 314 counting only the distinct ones).
The product of its digits is 34292160, while the sum is 61.
The spelling of 68971365376 in words is "sixty-eight billion, nine hundred seventy-one million, three hundred sixty-five thousand, three hundred seventy-six".
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