1661564839 is an odd 10-digits composite number following 1661564838
and preceding 1661564840 . In scientific notation, it is written as 1.661564839 × 10^9.
The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors.
There are 1428109920 positive integers (up to 1661564839) that are relatively prime to 1661564839.
1661564839 has 16 divisors, whose sum is 1911888000
The reverse of 1661564839 is 9384651661
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion six hundred sixty-one million five hundred sixty-four thousand eight hundred thirty-nine
Scientific notation
1.661564839 × 10^9
Engineering notation
1.661564839 × 10^9
Prime Factorization
19 × 11 × 509 × 15619
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1661564839
Product of the distinct prime numbers
The prime factorization of 1661564839 is 19 × 11 × 509 × 15619.
Since it has a total of 4 prime factors.
9 , 6 , 80 , 25 , 601 , 873 , 4295 , 7096 , 26232 , 33330 , 879867 , 795076 , 9507770 , 11248 , 42584467 , 85383384 , 396592141 , 305614664 , 6633814673 , 7380142027
n×2
3323129678
n×3
4984694517
n×4
6646259356
n×5
8307824195
n÷2
830782419.5
n÷3
553854946.33333
n÷3
415391209.75
n÷5
332312967.8
n2
2760797714201095921
n3
4.5872444095081E+27
n4
7.622004018738E+36
n5
1.2664453880252E+46
2 √n
40762.296782689
3 √n
1184.4200878671
4 √n
201.89674782593
5 √n
69.839875848564
1 , 11 , 19 , 209 , 509 , 5599 , 9671 , 15619 , 106381 , 171809 , 296761 , 3264371 , 7950071 , 87450781 , 151051349 , 1661564839
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
-1661564838
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 1661564839 can be divided by 16 positive divisors.
The sum of these divisors (counting 1661564839) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100011000010010111011110100111
3
Ternary
11021210112020110111
4
Quaternary
1203002113132213
5
Quinary
11400330033324
6
Senary
432513033451
8
Octal
14302273647
10
Decimal
1661564839
12
Duodecimal
3a4555887
16
Hexadecimal
630977a7
20
Vigesimal
15j4fc1j
36
Base36
rh93mv
md5
620c7e553b31f9add2f1379787122d7c
sha1
0050fb10e41d393741042ada897dceaff50f0fd7
sha256
ac9c4c2e5919ae03b379504d355655e1f3c62f93e38a4ec5e4e93a676af6f081
sha512
737ca6525e6c588580127e2ac271153f5a7310da86794c3e4290ee5d5de20744d7130163fb450f17286f5a7f525450e9eb33d50819537b806721ba829981994f
ripemd-160
647613026c9b8a642ab2d506fbb10180bc76082c
Diameter
3323129678
Circumference
10439919783.331
Area
8.6733018169817E+18
Volume
1.9215004449509E+28
Surface area
3.4693207267927E+19
Circumference
10439919783.331
Perimeter
6646259356
Area
2760797714201095921
Diagonal
2349807530.0761
Surface area
1.6564786285207E+19
Volume
4.5872444095081E+27
Space diagonal
2877914721.218
Perimeter
4984694517
Area
1.1954604776041E+18
Altitude
1438957360.609
Surface area
1.1954604776041E+18
Volume
5.4061193815388E+26
Height
783269176.69202