Base | Representation |
---|---|
bin | 11111001111000101101010… |
… | …00010000011101111010100 |
3 | 100000012112010120100000010220 |
4 | 33213202311002003233110 |
5 | 33000341314434311312 |
6 | 402030522531314340 |
7 | 20316361331313213 |
oct | 1747426502035724 |
9 | 300175116300126 |
10 | 68688154213332 |
11 | 1a9825343a20a5 |
12 | 7854283a4b9b0 |
13 | 2c4335a6c0654 |
14 | 12d674ad6307a |
15 | 7e1b0ab62c8c |
hex | 3e78b5083bd4 |
68688154213332 has 48 divisors (see below), whose sum is σ = 168839860472640. Its totient is φ = 21674010074112.
The previous prime is 68688154213307. The next prime is 68688154213339. The reversal of 68688154213332 is 23331245188686.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68688154213339) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117666493 + ... + 118248804.
It is an arithmetic number, because the mean of its divisors is an integer number (3517497093180).
Almost surely, 268688154213332 is an apocalyptic number.
It is an amenable number.
68688154213332 is an abundant number, since it is smaller than the sum of its proper divisors (100151706259308).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68688154213332 is a wasteful number, since it uses less digits than its factorization.
68688154213332 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 235916600 (or 235916598 counting only the distinct ones).
The product of its digits is 39813120, while the sum is 60.
The spelling of 68688154213332 in words is "sixty-eight trillion, six hundred eighty-eight billion, one hundred fifty-four million, two hundred thirteen thousand, three hundred thirty-two".
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