Base | Representation |
---|---|
bin | 111111001010011011… |
… | …110101001100111100 |
3 | 20111001112210202102000 |
4 | 333022123311030330 |
5 | 2102344111143001 |
6 | 51053443102300 |
7 | 4620443212161 |
oct | 771233651474 |
9 | 214045722360 |
10 | 67820802876 |
11 | 26843091012 |
12 | 11189071990 |
13 | 651ab1a9b8 |
14 | 33d5432068 |
15 | 1b6e152a86 |
hex | fca6f533c |
67820802876 has 48 divisors (see below), whose sum is σ = 176310919680. Its totient is φ = 22545321840.
The previous prime is 67820802871. The next prime is 67820802911.
67820802876 is nontrivially palindromic in base 10.
It is a super-2 number, since 2×678208028762 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67820802871) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815910 + ... + 895181.
It is an arithmetic number, because the mean of its divisors is an integer number (3673144160).
Almost surely, 267820802876 is an apocalyptic number.
It is an amenable number.
67820802876 is an abundant number, since it is smaller than the sum of its proper divisors (108490116804).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67820802876 is a wasteful number, since it uses less digits than its factorization.
67820802876 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1711471 (or 1711463 counting only the distinct ones).
The product of its (nonzero) digits is 3612672, while the sum is 54.
The spelling of 67820802876 in words is "sixty-seven billion, eight hundred twenty million, eight hundred two thousand, eight hundred seventy-six".
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