381640785 is an odd 9-digits composite number following 381640784
and preceding 381640786 . In scientific notation, it is written as 3.81640785 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 203541744 positive integers (up to 381640785) that are relatively prime to 381640785.
381640785 has 4 divisors, whose sum is 407083520
The reverse of 381640785 is 587046183
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
three hundred eighty-one million six hundred forty thousand seven hundred eighty-five
Scientific notation
3.81640785 × 10^8
Engineering notation
3.81640785 × 10^6
Prime Factorization
15 × 25442719
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
381640785
Product of the distinct prime numbers
The prime factorization of 381640785 is 15 × 25442719.
Since it has a total of 2 prime factors.
10 , 1 , 47 , 23 , 301 , 749 , 7704 , 28 , 12928 , 46468 , 874502 , 29646 , 7406352 , 597530 , 42759092 , 11529455 , 896377211 , 587974654 , 8842046305 , 1685946231
n×2
763281570
n×3
1144922355
n×4
1526563140
n×5
1908203925
n÷2
190820392.5
n÷3
127213595
n÷3
95410196.25
n÷5
76328157
n2
145649688775416225
n3
5.5585861559256E+25
n4
2.1213831840376E+34
n5
8.0960634364189E+42
2 √n
19535.628605192
3 √n
725.35664418888
4 √n
139.76991309002
5 √n
52.039241288731
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-381640784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 381640785 can be divided by 4 positive divisors.
The sum of these divisors (counting 381640785) is 1, the average is 0.25.
Base
System
Value
2
Binary
10110101111110110000001010001
3
Ternary
222121010100201220
4
Quaternary
112233312001101
5
Quinary
1240200001120
6
Senary
101511515253
8
Octal
2657660121
10
Decimal
381640785
12
Duodecimal
a7988b29
16
Hexadecimal
16bf6051
20
Vigesimal
5j551j5
36
Base36
6b7vwx
md5
1934c7d5af6b6bff9838dbf7919daddb
sha1
5be2e857113a90a819d3a8508b2e2587a4515107
sha256
c68e104ca6da0aef5079f3947023c89bb387012379adcc52a18c63ea21d6b270
sha512
9c31f9575eaf29aa5041dc983d9c8e592f327aa37ca05a020de44a15ae93f91fce5948d939e5cc0c4f627144f06984aab97cf50f94862a4f423539ae6c102e17
ripemd-160
f40af79bddc2fc7d43ee2f8a9da483e0bbead3c1
Diameter
763281570
Circumference
2397919772.9325
Area
4.5757199225449E+17
Volume
2.3283751242402E+26
Surface area
1.8302879690179E+18
Circumference
2397919772.9325
Perimeter
1526563140
Area
145649688775416225
Diagonal
539721574.10171
Surface area
873898132652497350
Volume
5.5585861559256E+25
Space diagonal
661021229.86047
Perimeter
1144922355
Area
6.3068165266404E+16
Altitude
330510614.93024
Surface area
6.3068165266404E+16
Volume
6.5508566077744E+24
Height
179907191.36724