19007981 is an odd 8-digits prime number following 19007980
and preceding 19007982 . In scientific notation, it is written as 1.9007981 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 19007980 positive integers (up to 19007981) that are relatively prime to 19007981.
19007981 has 2 divisors, whose sum is 19007982
The reverse of 19007981 is 18970091
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
nineteen million seven thousand nine hundred eighty-one
Scientific notation
1.9007981 × 10^7
Engineering notation
1.9007981 × 10^6
Prime Factorization
19007981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19007981
Product of the distinct prime numbers
The prime factorization of 19007981 is 19007981.
Since it has a total of 1 prime factors.
10 , 8 , 33 , 64 , 387 , 198 , 7029 , 7085 , 87748 , 92751 , 746196 , 625144 , 8492215 , 6287609 , 58987214 , 70146886 , 180686883 , 103607881 , 8258881954 , 681216134
n×2
38015962
n×3
57023943
n×4
76031924
n×5
95039905
n÷2
9503990.5
n÷3
6335993.6666667
n÷3
4751995.25
n÷5
3801596.2
n2
361303341696361
n3
6.8676470542009E+21
n4
1.3054010472096E+29
n5
2.481303830274E+36
2 √n
4359.8143309091
3 √n
266.87752194653
4 √n
66.028890123256
5 √n
28.561906810407
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19007982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9503991
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4359.8144455928
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999894781
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19007981 can be divided by 2 positive divisors.
The sum of these divisors (counting 19007981) is 19007982, the average is 9503991.
Base
System
Value
2
Binary
1001000100000100111101101
3
Ternary
1022202201001022
4
Quaternary
1020200213231
5
Quinary
14331223411
6
Senary
1515223525
8
Octal
110404755
10
Decimal
19007981
12
Duodecimal
6447ba5
16
Hexadecimal
12209ed
20
Vigesimal
5ifjj1
36
Base36
bbenh
md5
ac4095bb5c125bc3a6d6df10e2332a49
sha1
757c60a3ae37eadfb3f0b8e77e3e5e1c86a22d2b
sha256
f616cf754c8c1b5584498adafe8cb0a71a5b7e76bc1b90ede931b54cf6629203
sha512
395ceba480f5cf4b600749ee9b80b8674dc8afd84ca60e67c61b862fa2c4581fbe0b66a22c7de377409c75abc100e4e47e25796fd7ea417a1eb614246ea7643f
ripemd-160
80d4c3d39c415dbf75fb3e0b699c0e09a3b8d82a
Diameter
38015962
Circumference
119430666.93835
Area
1.1350679239907E+15
Volume
2.8767132710567E+22
Surface area
4.5402716959629E+15
Circumference
119430666.93835
Perimeter
76031924
Area
361303341696361
Diagonal
26881344.52353
Surface area
2167820050178166
Volume
6.8676470542009E+21
Space diagonal
32922788.841304
Perimeter
57023943
Area
1.5644893619063E+14
Altitude
16461394.420652
Surface area
1.5644893619063E+14
Volume
8.0935996713688E+20
Height
8960448.17451