Base | Representation |
---|---|
bin | 111111001110110001… |
… | …010001000100000001 |
3 | 20111020121122201110211 |
4 | 333032301101010001 |
5 | 2103021220442011 |
6 | 51105001554121 |
7 | 4622315330161 |
oct | 771661210401 |
9 | 214217581424 |
10 | 67893530881 |
11 | 26880145700 |
12 | 111a94a5941 |
13 | 652cc03117 |
14 | 3400d645a1 |
15 | 1b7571bb21 |
hex | fcec51101 |
67893530881 has 12 divisors (see below), whose sum is σ = 77871419136. Its totient is φ = 59037850520.
The previous prime is 67893530867. The next prime is 67893530897. The reversal of 67893530881 is 18803539876.
It is not a de Polignac number, because 67893530881 - 213 = 67893522689 is a prime.
It is a super-2 number, since 2×678935308812 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (67893530821) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12195121 + ... + 12200686.
It is an arithmetic number, because the mean of its divisors is an integer number (6489284928).
Almost surely, 267893530881 is an apocalyptic number.
It is an amenable number.
67893530881 is a deficient number, since it is larger than the sum of its proper divisors (9977888255).
67893530881 is a wasteful number, since it uses less digits than its factorization.
67893530881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24395852 (or 24395841 counting only the distinct ones).
The product of its (nonzero) digits is 8709120, while the sum is 58.
The spelling of 67893530881 in words is "sixty-seven billion, eight hundred ninety-three million, five hundred thirty thousand, eight hundred eighty-one".
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