2021381857 is an odd 10-digits composite number following 2021381856
and preceding 2021381858 . In scientific notation, it is written as 2.021381857 × 10^9.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 1805731200 positive integers (up to 2021381857) that are relatively prime to 2021381857.
2021381857 has 8 divisors, whose sum is 2030681960
The reverse of 2021381857 is 7581831202
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 37
Digital Root 1
Name
two billion twenty-one million three hundred eighty-one thousand eight hundred fifty-seven
Scientific notation
2.021381857 × 10^9
Engineering notation
2.021381857 × 10^9
Prime Factorization
781 × 313 × 8269
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2021381857
Product of the distinct prime numbers
The prime factorization of 2021381857 is 781 × 313 × 8269.
Since it has a total of 3 prime factors.
4 , 5 , 56 , 83 , 674 , 666 , 6499 , 2911 , 11419 , 60750 , 682553 , 31108 , 2890281 , 1927100 , 22835519 , 8586971 , 160363425 , 347758111 , 1665502432 , 890854040
n×2
4042763714
n×3
6064145571
n×4
8085527428
n×5
10106909285
n÷2
1010690928.5
n÷3
673793952.33333
n÷3
505345464.25
n÷5
404276371.4
n2
4085984611808768449
n3
8.2593351622914E+27
n4
1.6695270247938E+37
n5
3.3747516376894E+46
2 √n
44959.780437631
3 √n
1264.3950524452
4 √n
212.03721474692
5 √n
72.632279223435
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
-2021381856
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 2021381857 can be divided by 8 positive divisors.
The sum of these divisors (counting 2021381857) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000011110111101011011100001
3
Ternary
12012212120211121201
4
Quaternary
1320132331123201
5
Quinary
13114433204412
6
Senary
532325121201
8
Octal
17036753341
10
Decimal
2021381857
12
Duodecimal
484b59201
16
Hexadecimal
787bd6e1
20
Vigesimal
1bbdcech
36
Base36
xfh881
md5
86298d41e65aee8dc26a9b7d84174e6b
sha1
ae987d1b87b8f3857373a8aaa0d3923333ae809c
sha256
b65c1a7f749e197f73337221435e90c1aa9887a093d767ca9a12f545698c8f9d
sha512
0e1b5c33cd1ef75f3567c73e3d30be9ba988b3a2e93ace5466c36f01192d31bab7aea8a319f08b55f20353ff2da2849ed86d8eceae65cadc1ad6eb537ddc2d5e
ripemd-160
029d735df6a807ea84917c84e9f2328f1b6f437d
Diameter
4042763714
Circumference
12700716784.102
Area
1.2836499239139E+19
Volume
3.4596622225854E+28
Surface area
5.1345996956557E+19
Circumference
12700716784.102
Perimeter
8085527428
Area
4085984611808768449
Diagonal
2858665636.9043
Surface area
2.4515907670853E+19
Volume
8.2593351622914E+27
Space diagonal
3501136077.8219
Perimeter
6064145571
Area
1.7692832366493E+18
Altitude
1750568038.911
Surface area
1.7692832366493E+18
Volume
9.7337198355813E+26
Height
952888545.63477