820121664 is an even 9-digits composite number following 820121663
and preceding 820121665 . In scientific notation, it is written as 8.20121664 × 10^8.
The sum of its digits is 30. It has a total of 8 prime factors and 28 positive divisors.
There are 273373824 positive integers (up to 820121664) that are relatively prime to 820121664.
820121664 has 28 divisors, whose sum is 2169905744
The reverse of 820121664 is 466121028
Previous prime number is 3
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
eight hundred twenty million one hundred twenty-one thousand six hundred sixty-four
Scientific notation
8.20121664 × 10^8
Engineering notation
8.20121664 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 3 × 4271467
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
25628802
Product of the distinct prime numbers
The prime factorization of 820121664 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 4271467.
Since it has a total of 8 prime factors.
2 , 5 , 80 , 76 , 874 , 788 , 7490 , 848 , 33609 , 63523 , 488395 , 441049 , 4116745 , 2328042 , 34601116 , 81143327 , 294174493 , 15621311 , 5738061854 , 3205742126
n×2
1640243328
n×3
2460364992
n×4
3280486656
n×5
4100608320
n÷2
410060832
n÷3
273373888
n÷3
205030416
n÷5
164024332.8
n2
672599543762128896
n3
5.5161345703584E+26
n4
4.5239014626902E+35
n5
3.7101495953536E+44
2 √n
28637.766393348
3 √n
936.03645120664
4 √n
169.22696709848
5 √n
60.642298921474
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 64 , 96 , 192 , 4271467 , 8542934 , 12814401 , 17085868 , 25628802 , 34171736 , 51257604 , 68343472 , 102515208 , 136686944 , 205030416 , 273373888 , 410060832 , 820121664
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-820121663
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 820121664 can be divided by 28 positive divisors.
The sum of these divisors (counting 820121664) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
110000111000100001000001000000
3
Ternary
2010011012111102110
4
Quaternary
300320201001000
5
Quinary
3134422343124
6
Senary
213214015320
8
Octal
6070410100
10
Decimal
820121664
12
Duodecimal
1aa7a7540
16
Hexadecimal
30e21040
20
Vigesimal
cg5f434
36
Base36
dka1xc
md5
d9a6391747c688efcb007b02384a2871
sha1
d1395c1f01359e8907746872dd7adc12281ad07e
sha256
0f24186cbef5004b1321a1a10ad664b6b6a29a6231971aa7f34161c7e341301d
sha512
d8bf9c4e73c337a27ee28435409e5c5a36d1a48fbbd214f718aa2352f9b2ec4d6a9cfdc54415deb2e06601e22393b95753145dfa45f842e8652b4782eab2565c
ripemd-160
de9c155b47d1fee5f21002db6c784e5951cda7ee
Diameter
1640243328
Circumference
5152976389.3445
Area
2.113033785491E+18
Volume
2.3105930456601E+27
Surface area
8.4521351419638E+18
Circumference
5152976389.3445
Perimeter
3280486656
Area
672599543762128896
Diagonal
1159827180.0248
Surface area
4035597262572773376
Volume
5.5161345703584E+26
Space diagonal
1420492390.4359
Perimeter
2460364992
Area
2.9124414573591E+17
Altitude
710246195.21797
Surface area
2.9124414573591E+17
Volume
6.5008269343966E+25
Height
386609060.00826