1938962987 is an odd 10-digits composite number following 1938962986
and preceding 1938962988 . In scientific notation, it is written as 1.938962987 × 10^9.
The sum of its digits is 62. It has a total of 2 prime factors and 4 positive divisors.
There are 1789811976 positive integers (up to 1938962987) that are relatively prime to 1938962987.
1938962987 has 4 divisors, whose sum is 2088114000
The reverse of 1938962987 is 7892698391
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 62
Digital Root 8
Name
one billion nine hundred thirty-eight million nine hundred sixty-two thousand nine hundred eighty-seven
Scientific notation
1.938962987 × 10^9
Engineering notation
1.938962987 × 10^9
Prime Factorization
13 × 149150999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1938962987
Product of the distinct prime numbers
The prime factorization of 1938962987 is 13 × 149150999.
Since it has a total of 2 prime factors.
5 , 4 , 82 , 32 , 946 , 157 , 9271 , 4108 , 31068 , 60022 , 31612 , 464234 , 2214524 , 332325 , 25557535 , 76387151 , 191272517 , 969177141 , 4476195262 , 8900516471
n×2
3877925974
n×3
5816888961
n×4
7755851948
n×5
9694814935
n÷2
969481493.5
n÷3
646320995.66667
n÷3
484740746.75
n÷5
387792597.4
n2
3759577464955962169
n3
7.2896815513089E+27
n4
1.4134422715005E+37
n5
2.7406122487006E+46
2 √n
44033.657433831
3 √n
1246.9714387394
4 √n
209.84198205753
5 √n
72.03008110313
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
-1938962986
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 1938962987 can be divided by 4 positive divisors.
The sum of these divisors (counting 1938962987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110011100100100011101000101011
3
Ternary
12000010111112011222
4
Quaternary
1303210203220223
5
Quinary
12432333303422
6
Senary
520222412255
8
Octal
16344435053
10
Decimal
1938962987
12
Duodecimal
46143108b
16
Hexadecimal
73923a2b
20
Vigesimal
1a5ia797
36
Base36
w2epez
md5
71fc38fca2308826065e19257d74ebdf
sha1
9558d2225905e02595fffbdee933f5b76dfe8b21
sha256
cf17cabaf003c7e3c0e6eecc8134f56b5fedc69a5ce2b15e7f339114983e5de2
sha512
740a7ff5ff20b807bb09eb36a2faae7fb221a01b9f0fd62dc5d7506e3d83efd2c84592c00c43cfe39e53519bb94dde102e8afad09c6f6e1817100b7ac26b1e75
ripemd-160
180a2ff9a54002744ffc9ea2864e254aa158f95d
Diameter
3877925974
Circumference
12182863751.083
Area
1.1811060944507E+19
Volume
3.0534946678135E+28
Surface area
4.724424377803E+19
Circumference
12182863751.083
Perimeter
7755851948
Area
3759577464955962169
Diagonal
2742107753.1548
Surface area
2.2557464789736E+19
Volume
7.2896815513089E+27
Space diagonal
3358382407.4795
Perimeter
5816888961
Area
1.6279447960737E+18
Altitude
1679191203.7398
Surface area
1.6279447960737E+18
Volume
8.590972096035E+26
Height
914035917.71828