381105891 is an odd 9-digits composite number following 381105890
and preceding 381105892 . In scientific notation, it is written as 3.81105891 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 252175680 positive integers (up to 381105891) that are relatively prime to 381105891.
381105891 has 16 divisors, whose sum is 431877600
The reverse of 381105891 is 198501183
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
three hundred eighty-one million one hundred five thousand eight hundred ninety-one
Scientific notation
3.81105891 × 10^8
Engineering notation
3.81105891 × 10^6
Prime Factorization
81 × 9 × 139 × 3761
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
381105891
Product of the distinct prime numbers
The prime factorization of 381105891 is 81 × 9 × 139 × 3761.
Since it has a total of 4 prime factors.
2 , 2 , 7 , 51 , 72 , 751 , 7420 , 2881 , 78038 , 63574 , 805206 , 626138 , 3567577 , 3900785 , 18799517 , 51964696 , 229312761 , 481438974 , 723140910 , 9263836
n×2
762211782
n×3
1143317673
n×4
1524423564
n×5
1905529455
n÷2
190552945.5
n÷3
127035297
n÷3
95276472.75
n÷5
76221178.2
n2
145241700154903881
n3
5.5352467547889E+25
n4
2.1095151463887E+34
n5
8.0394864944246E+42
2 √n
19521.933587634
3 √n
725.01760781652
4 √n
139.72091320785
5 √n
52.024645838013
1 , 9 , 81 , 139 , 729 , 1251 , 3761 , 11259 , 33849 , 101331 , 304641 , 522779 , 2741769 , 4705011 , 42345099 , 381105891
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
-381105890
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 381105891 can be divided by 16 positive divisors.
The sum of these divisors (counting 381105891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10110101101110011011011100011
3
Ternary
222120010012000000
4
Quaternary
112231303123203
5
Quinary
1240030342031
6
Senary
101452231043
8
Octal
2655633343
10
Decimal
381105891
12
Duodecimal
a776b483
16
Hexadecimal
16b736e3
20
Vigesimal
5j1i4eb
36
Base36
6awf6r
md5
cb19760635cda9d5f0d945be552ceccd
sha1
a6d2a8991b317a1f51ed526008a773435db9ae2a
sha256
bc5fc3001d996914f9864df590f52ef5222d092daa4ed56666fb63ce92b136e7
sha512
4259a0a55de14ce5be81556cef7c28fecc625c2d2b7234e72baad4d092902fff612760861b66b5e215385536dd4e4681bd1aa65344b5e456b952135c0a5f3f58
ripemd-160
4218a6f39169187f97ea57fe9c0c7e7f84e6c9e8
Diameter
762211782
Circumference
2394558934.8108
Area
4.5629025820154E+17
Volume
2.3185987387536E+26
Surface area
1.8251610328062E+18
Circumference
2394558934.8108
Perimeter
1524423564
Area
145241700154903881
Diagonal
538965119.75248
Surface area
871450200929423286
Volume
5.5352467547889E+25
Space diagonal
660094766.27581
Perimeter
1143317673
Area
6.2891501011494E+16
Altitude
330047383.1379
Surface area
6.2891501011494E+16
Volume
6.5233508597535E+24
Height
179655039.91749