| Base | Representation |
|---|---|
| bin | 110010001111010… |
| … | …0101110111110000 |
| 3 | 11100111000111222100 |
| 4 | 1210132211313300 |
| 5 | 11423022203130 |
| 6 | 435135140400 |
| 7 | 56526363624 |
| oct | 14436456760 |
| 9 | 4314014870 |
| 10 | 1685741040 |
| 11 | 795614215 |
| 12 | 3b0674700 |
| 13 | 20b326309 |
| 14 | 11dc53184 |
| 15 | 9ced8c60 |
| hex | 647a5df0 |
1685741040 has 120 divisors (see below), whose sum is σ = 5793044400. Its totient is φ = 439068672.
The previous prime is 1685741027. The next prime is 1685741041. The reversal of 1685741040 is 401475861.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1685740986 and 1685741004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1685741041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3736 + ... + 58184.
It is an arithmetic number, because the mean of its divisors is an integer number (48275370).
Almost surely, 21685741040 is an apocalyptic number.
1685741040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1685741040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2896522200).
1685741040 is an abundant number, since it is smaller than the sum of its proper divisors (4107303360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1685741040 is a wasteful number, since it uses less digits than its factorization.
1685741040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54511 (or 54502 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 1685741040 is about 41057.7768516514. The cubic root of 1685741040 is about 1190.1369896199.
The spelling of 1685741040 in words is "one billion, six hundred eighty-five million, seven hundred forty-one thousand, forty".
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