Base | Representation |
---|---|
bin | 100000000110110010… |
… | …1111000011111011100 |
3 | 20120222001220110202011 |
4 | 1000031211320133130 |
5 | 2112201030330020 |
6 | 51401332241004 |
7 | 4660404114235 |
oct | 1001545703734 |
9 | 216861813664 |
10 | 68947511260 |
11 | 27271088771 |
12 | 11442470164 |
13 | 666a390354 |
14 | 34a0d2408c |
15 | 1bd801235a |
hex | 100d9787dc |
68947511260 has 12 divisors (see below), whose sum is σ = 144789773688. Its totient is φ = 27579004496.
The previous prime is 68947511257. The next prime is 68947511293. The reversal of 68947511260 is 6211574986.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1723687762 + ... + 1723687801.
It is an arithmetic number, because the mean of its divisors is an integer number (12065814474).
Almost surely, 268947511260 is an apocalyptic number.
It is an amenable number.
68947511260 is an abundant number, since it is smaller than the sum of its proper divisors (75842262428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68947511260 is a wasteful number, since it uses less digits than its factorization.
68947511260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3447375572 (or 3447375570 counting only the distinct ones).
The product of its (nonzero) digits is 725760, while the sum is 49.
The spelling of 68947511260 in words is "sixty-eight billion, nine hundred forty-seven million, five hundred eleven thousand, two hundred sixty".
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