Base | Representation |
---|---|
bin | 100000000011000111… |
… | …1001110100010101000 |
3 | 20120122110202010212202 |
4 | 1000012033032202220 |
5 | 2111422434204002 |
6 | 51341203555332 |
7 | 4654345316225 |
oct | 1000617164250 |
9 | 216573663782 |
10 | 68824131752 |
11 | 27208478932 |
12 | 1140908bb48 |
13 | 664a95211c |
14 | 348c7a894c |
15 | 1bcc290502 |
hex | 10063ce8a8 |
68824131752 has 16 divisors (see below), whose sum is σ = 129899853600. Its totient is φ = 34184170800.
The previous prime is 68824131751. The next prime is 68824131757. The reversal of 68824131752 is 25713142886.
It is a super-2 number, since 2×688241317522 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 68824131697 and 68824131706.
It is not an unprimeable number, because it can be changed into a prime (68824131751) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28485602 + ... + 28488017.
It is an arithmetic number, because the mean of its divisors is an integer number (8118740850).
Almost surely, 268824131752 is an apocalyptic number.
It is an amenable number.
68824131752 is a deficient number, since it is larger than the sum of its proper divisors (61075721848).
68824131752 is a wasteful number, since it uses less digits than its factorization.
68824131752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56973776 (or 56973772 counting only the distinct ones).
The product of its digits is 645120, while the sum is 47.
The spelling of 68824131752 in words is "sixty-eight billion, eight hundred twenty-four million, one hundred thirty-one thousand, seven hundred fifty-two".
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