2021638385 is an odd 10-digits composite number following 2021638384
and preceding 2021638386 . In scientific notation, it is written as 2.021638385 × 10^9.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 1405083648 positive integers (up to 2021638385) that are relatively prime to 2021638385.
2021638385 has 8 divisors, whose sum is 2202763752
The reverse of 2021638385 is 5838361202
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
two billion twenty-one million six hundred thirty-eight thousand three hundred eighty-five
Scientific notation
2.021638385 × 10^9
Engineering notation
2.021638385 × 10^9
Prime Factorization
85 × 13 × 1829537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2021638385
Product of the distinct prime numbers
The prime factorization of 2021638385 is 85 × 13 × 1829537.
Since it has a total of 3 prime factors.
2 , 5 , 44 , 9 , 61 , 426 , 2370 , 9233 , 78456 , 34940 , 319542 , 863989 , 3119384 , 6890643 , 17879669 , 93003020 , 15635921 , 834144186 , 428409449 , 5517465491
n×2
4043276770
n×3
6064915155
n×4
8086553540
n×5
10108191925
n÷2
1010819192.5
n÷3
673879461.66667
n÷3
505409596.25
n÷5
404327677
n2
4087021759705408225
n3
8.2624800697507E+27
n4
1.6703746864305E+37
n5
3.3768935834203E+46
2 √n
44962.633208032
3 √n
1264.4485371464
4 √n
212.04394169141
5 √n
72.634122642332
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
-2021638384
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 2021638385 can be divided by 8 positive divisors.
The sum of these divisors (counting 2021638385) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000011111111100000011110001
3
Ternary
12012220001212111202
4
Quaternary
1320133330003301
5
Quinary
13120014412020
6
Senary
532334420545
8
Octal
17037740361
10
Decimal
2021638385
12
Duodecimal
485061755
16
Hexadecimal
787fc0f1
20
Vigesimal
1bbf4fj5
36
Base36
xfmq5t
md5
c855b3152c48db5cb6bff355dce77ada
sha1
9626416dd55479f98f8c707c46346e7ff1b456b0
sha256
d8064770e29975533f1e7cecd538d48850cc02a7dc937d6ab20eea464fbce80b
sha512
8e2ed8de42b19a4b0599c73f66e40df5fc5c46b51d8f1daad0e1aad3e4b703ff509331fc9c1de5901851198b795c555da89f3cc66246b8ed75f665fa54f0076e
ripemd-160
8ad97aa61ea8ad988fa51b487f2cc680883821bf
Diameter
4043276770
Circumference
12702328597.062
Area
1.2839757535352E+19
Volume
3.4609795583415E+28
Surface area
5.1359030141409E+19
Circumference
12702328597.062
Perimeter
8086553540
Area
4087021759705408225
Diagonal
2859028422.281
Surface area
2.4522130558232E+19
Volume
8.2624800697507E+27
Space diagonal
3501580397.3515
Perimeter
6064915155
Area
1.7697323348623E+18
Altitude
1750790198.6757
Surface area
1.7697323348623E+18
Volume
9.7374261445657E+26
Height
953009474.09368