1660649985 is an odd 10-digits composite number following 1660649984
and preceding 1660649986 . In scientific notation, it is written as 1.660649985 × 10^9.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 885679920 positive integers (up to 1660649985) that are relatively prime to 1660649985.
1660649985 has 16 divisors, whose sum is 2952266880
The reverse of 1660649985 is 5899460661
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 54
Digital Root 9
Name
one billion six hundred sixty million six hundred forty-nine thousand nine hundred eighty-five
Scientific notation
1.660649985 × 10^9
Engineering notation
1.660649985 × 10^9
Prime Factorization
9 × 5 × 3 × 12301111
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1660649985
Product of the distinct prime numbers
The prime factorization of 1660649985 is 9 × 5 × 3 × 12301111.
Since it has a total of 4 prime factors.
3 , 3 , 90 , 68 , 769 , 118 , 5825 , 6923 , 19840 , 36137 , 862981 , 245606 , 2123101 , 9819235 , 3261584 , 39207479 , 250983200 , 13155741 , 3318733649 , 1919536460
n×2
3321299970
n×3
4981949955
n×4
6642599940
n×5
8303249925
n÷2
830324992.5
n÷3
553549995
n÷3
415162496.25
n÷5
332129997
n2
2757758372680500225
n3
4.5796714002255E+27
n4
7.6052312420894E+36
n5
1.2629627148097E+46
2 √n
40751.073421445
3 √n
1184.2026682473
4 √n
201.868951108
5 √n
69.832183417341
1 , 3 , 5 , 9 , 15 , 27 , 45 , 135 , 12301111 , 36903333 , 61505555 , 110709999 , 184516665 , 332129997 , 553549995 , 1660649985
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1660649984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1660649985 can be divided by 16 positive divisors.
The sum of these divisors (counting 1660649985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100010111110111000001000000001
3
Ternary
11021201210202112000
4
Quaternary
1202332320020001
5
Quinary
11400111244420
6
Senary
432441254213
8
Octal
14276701001
10
Decimal
1660649985
12
Duodecimal
3a4194369
16
Hexadecimal
62fb8201
20
Vigesimal
15ij14j5
36
Base36
rgphq9
md5
9e9415293ece0920aaf651f82cc37c90
sha1
ea84fc8d0c3f79cddc5e862459fd858ec3c90308
sha256
ffd9ba1bf8986200810ba46a5959e327fa0ecb4f10d6e67eaf9dcc57151288f8
sha512
1474779466da1730a7a3d812e45cb7bdfb9a42c17f33cc8d2b3e0952cfdcbd10e81b553e5a8ad2241bc2e95bfded2e3e8dfea008ceb9f986dc886486712e0dad
ripemd-160
faa696b9b7638883189406f682923dcffc850eac
Diameter
3321299970
Circumference
10434171586.12
Area
8.6637534439888E+18
Volume
1.9183282702405E+28
Surface area
3.4655013775955E+19
Circumference
10434171586.12
Perimeter
6642599940
Area
2757758372680500225
Diagonal
2348513731.1417
Surface area
1.6546550236083E+19
Volume
4.5796714002255E+27
Space diagonal
2876330147.6085
Perimeter
4981949955
Area
1.1941444041203E+18
Altitude
1438165073.8042
Surface area
1.1941444041203E+18
Volume
5.3971945045092E+26
Height
782837910.38056