Base | Representation |
---|---|
bin | 111111110100000111… |
… | …111110010100011110 |
3 | 20112212021220212100000 |
4 | 333310013332110132 |
5 | 2110312140143124 |
6 | 51251110315130 |
7 | 4643665301523 |
oct | 776407762436 |
9 | 215767825300 |
10 | 68520240414 |
11 | 2707198686a |
12 | 11343358aa6 |
13 | 65cc9c1072 |
14 | 34602a114a |
15 | 1bb07636c9 |
hex | ff41fe51e |
68520240414 has 48 divisors (see below), whose sum is σ = 154233136512. Its totient is φ = 22799420568.
The previous prime is 68520240403. The next prime is 68520240433. The reversal of 68520240414 is 41404202586.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148407 + ... + 398829.
It is an arithmetic number, because the mean of its divisors is an integer number (3213190344).
Almost surely, 268520240414 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68520240414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77116568256).
68520240414 is an abundant number, since it is smaller than the sum of its proper divisors (85712896098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68520240414 is a wasteful number, since it uses less digits than its factorization.
68520240414 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 251003 (or 250991 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 36.
The spelling of 68520240414 in words is "sixty-eight billion, five hundred twenty million, two hundred forty thousand, four hundred fourteen".
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