Base | Representation |
---|---|
bin | 111111111000010101… |
… | …100010101110100000 |
3 | 20120001012220001200000 |
4 | 333320111202232200 |
5 | 2110433233000042 |
6 | 51302113100000 |
7 | 4645514040450 |
oct | 777025425640 |
9 | 216035801600 |
10 | 68590906272 |
11 | 270a88620a9 |
12 | 11362b57600 |
13 | 6611533995 |
14 | 3469817d60 |
15 | 1bb6a7174c |
hex | ff8562ba0 |
68590906272 has 144 divisors (see below), whose sum is σ = 231176941632. Its totient is φ = 19597386240.
The previous prime is 68590906259. The next prime is 68590906273. The reversal of 68590906272 is 27260909586.
68590906272 is a `hidden beast` number, since 6 + 8 + 5 + 9 + 0 + 9 + 0 + 627 + 2 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (68590906273) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575629 + ... + 684492.
It is an arithmetic number, because the mean of its divisors is an integer number (1605395428).
Almost surely, 268590906272 is an apocalyptic number.
It is an amenable number.
68590906272 is an abundant number, since it is smaller than the sum of its proper divisors (162586035360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68590906272 is a wasteful number, since it uses less digits than its factorization.
68590906272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1260153 (or 1260133 counting only the distinct ones).
The product of its (nonzero) digits is 3265920, while the sum is 54.
The spelling of 68590906272 in words is "sixty-eight billion, five hundred ninety million, nine hundred six thousand, two hundred seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •