Base | Representation |
---|---|
bin | 100000000000111110… |
… | …1001000111010100000 |
3 | 20120110110112202111222 |
4 | 1000001331020322200 |
5 | 2111301040444443 |
6 | 51330115554212 |
7 | 4652513514440 |
oct | 1000175107240 |
9 | 216413482458 |
10 | 68752281248 |
11 | 27180963552 |
12 | 113a8bbb968 |
13 | 6638ab6231 |
14 | 3483024120 |
15 | 1bc5ceb468 |
hex | 1001f48ea0 |
68752281248 has 48 divisors (see below), whose sum is σ = 155151831744. Its totient is φ = 29377797120.
The previous prime is 68752281211. The next prime is 68752281259. The reversal of 68752281248 is 84218225786.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 68752281248.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379898 + ... + 530873.
It is an arithmetic number, because the mean of its divisors is an integer number (3232329828).
Almost surely, 268752281248 is an apocalyptic number.
It is an amenable number.
68752281248 is an abundant number, since it is smaller than the sum of its proper divisors (86399550496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68752281248 is a wasteful number, since it uses less digits than its factorization.
68752281248 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 911125 (or 911117 counting only the distinct ones).
The product of its digits is 3440640, while the sum is 53.
The spelling of 68752281248 in words is "sixty-eight billion, seven hundred fifty-two million, two hundred eighty-one thousand, two hundred forty-eight".
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