Base | Representation |
---|---|
bin | 111111011001011101… |
… | …101011001111100000 |
3 | 20111201010020212211200 |
4 | 333121131223033200 |
5 | 2103403133211413 |
6 | 51134451241200 |
7 | 4626624324234 |
oct | 773135531740 |
9 | 214633225750 |
10 | 68072944608 |
11 | 26962447909 |
12 | 112395a9200 |
13 | 655b1301a6 |
14 | 341ab085c4 |
15 | 1b8635b573 |
hex | fd976b3e0 |
68072944608 has 72 divisors (see below), whose sum is σ = 195391706328. Its totient is φ = 22478906112.
The previous prime is 68072944567. The next prime is 68072944619. The reversal of 68072944608 is 80644927086.
68072944608 is a `hidden beast` number, since 6 + 8 + 0 + 7 + 29 + 4 + 4 + 608 = 666.
It is a tau number, because it is divible by the number of its divisors (72).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1073691 + ... + 1135322.
It is an arithmetic number, because the mean of its divisors is an integer number (2713773699).
Almost surely, 268072944608 is an apocalyptic number.
It is an amenable number.
68072944608 is an abundant number, since it is smaller than the sum of its proper divisors (127318761720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68072944608 is a wasteful number, since it uses less digits than its factorization.
68072944608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2209136 (or 2209125 counting only the distinct ones).
The product of its (nonzero) digits is 4644864, while the sum is 54.
The spelling of 68072944608 in words is "sixty-eight billion, seventy-two million, nine hundred forty-four thousand, six hundred eight".
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