820121618 is an even 9-digits composite number following 820121617
and preceding 820121619 . In scientific notation, it is written as 8.20121618 × 10^8.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 409928004 positive integers (up to 820121618) that are relatively prime to 820121618.
820121618 has 8 divisors, whose sum is 1230580848
The reverse of 820121618 is 816121028
Previous prime number is 3163
Is Prime? no
Number parity even
Number length 9
Sum of Digits 29
Digital Root 2
Name
eight hundred twenty million one hundred twenty-one thousand six hundred eighteen
Scientific notation
8.20121618 × 10^8
Engineering notation
8.20121618 × 10^6
Prime Factorization
2 × 3163 × 129643
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
820121618
Product of the distinct prime numbers
The prime factorization of 820121618 is 2 × 3163 × 129643.
Since it has a total of 3 prime factors.
5 , 3 , 39 , 90 , 254 , 840 , 3946 , 7399 , 84907 , 54745 , 872081 , 973497 , 7044263 , 6665547 , 97182851 , 65475739 , 53915747 , 380001905 , 6542698736 , 6934321025
n×2
1640243236
n×3
2460364854
n×4
3280486472
n×5
4100608090
n÷2
410060809
n÷3
273373872.66667
n÷3
205030404.5
n÷5
164024323.6
n2
672599468310937924
n3
5.5161336421711E+26
n4
4.5239004477216E+35
n5
3.7101485548563E+44
2 √n
28637.765590213
3 √n
936.03643370611
4 √n
169.22696472552
5 √n
60.642298241198
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-820121617
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 820121618 can be divided by 8 positive divisors.
The sum of these divisors (counting 820121618) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111000100001000000010010
3
Ternary
2010011012111100202
4
Quaternary
300320201000102
5
Quinary
3134422342433
6
Senary
213214015202
8
Octal
6070410022
10
Decimal
820121618
12
Duodecimal
1aa7a7502
16
Hexadecimal
30e21012
20
Vigesimal
cg5f40i
36
Base36
dka1w2
md5
6abda4e4c3eeed2f0cccd2de2d77c5ad
sha1
af182d67a1112d68ab1a3f0c91bc0185f1b7b9ff
sha256
f69c67cb4a651f78e17d8f2e8c2eba7932e1f7ab7a55b777c444c3775d574d1b
sha512
0a10848607f0b1387e6b28e4a8a2882abf5496cc600631eabf6a8b94c648c906136538d1b2666ad68db8665bbaf5cb44ef5d84dac007e3a929cc3560ec619d49
ripemd-160
39701defd13bd782725b29c117f4462892be3df1
Diameter
1640243236
Circumference
5152976100.3179
Area
2.113033548454E+18
Volume
2.3105926568619E+27
Surface area
8.4521341938162E+18
Circumference
5152976100.3179
Perimeter
3280486472
Area
672599468310937924
Diagonal
1159827114.971
Surface area
4035596809865627544
Volume
5.5161336421711E+26
Space diagonal
1420492310.7616
Perimeter
2460364854
Area
2.9124411306459E+17
Altitude
710246155.3808
Surface area
2.9124411306459E+17
Volume
6.5008258405173E+25
Height
386609038.32366