Base | Representation |
---|---|
bin | 1000000101010… |
… | …01101101010001 |
3 | 11201120210120201 |
4 | 10002221231101 |
5 | 114324211420 |
6 | 10421135201 |
7 | 1452216154 |
oct | 402515521 |
9 | 151523521 |
10 | 67803985 |
11 | 35301157 |
12 | 1a85a501 |
13 | 11080102 |
14 | 900dc9b |
15 | 5e4510a |
hex | 40a9b51 |
67803985 has 8 divisors (see below), whose sum is σ = 81472896. Its totient is φ = 54171120.
The previous prime is 67803961. The next prime is 67804003. The reversal of 67803985 is 58930876.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 67803985 - 29 = 67803473 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4681 + ... + 12550.
It is an arithmetic number, because the mean of its divisors is an integer number (10184112).
Almost surely, 267803985 is an apocalyptic number.
It is an amenable number.
67803985 is a deficient number, since it is larger than the sum of its proper divisors (13668911).
67803985 is a wasteful number, since it uses less digits than its factorization.
67803985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18023.
The product of its (nonzero) digits is 362880, while the sum is 46.
The square root of 67803985 is about 8234.3175187747. The cubic root of 67803985 is about 407.7729437174.
It can be divided in two parts, 6780398 and 5, that added together give a triangular number (6780403 = T3682).
The spelling of 67803985 in words is "sixty-seven million, eight hundred three thousand, nine hundred eighty-five".
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