19979891 is an odd 8-digits prime number following 19979890
and preceding 19979892 . In scientific notation, it is written as 1.9979891 × 10^7.
The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors.
There are 19979890 positive integers (up to 19979891) that are relatively prime to 19979891.
19979891 has 2 divisors, whose sum is 19979892
The reverse of 19979891 is 19897991
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 53 Digital Root 8
Name
nineteen million nine hundred seventy-nine thousand eight hundred ninety-one
Scientific notation
1.9979891 × 10^7
Engineering notation
1.9979891 × 10^6
Prime Factorization
19979891
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
19979891 Product of the distinct prime numbers
The prime factorization of 19979891 is 19979891.
Since it has a total of 1 prime factors.
10 , 1 , 95 , 52 , 512 , 914 , 5977 , 4070 , 45606 , 15728 , 535025 , 601976 , 5388159 , 6290965 , 14223379 , 94779170 , 603722205 , 724260691 , 7637298888 , 5286423665
n×2
39959782
n×3
59939673
n×4
79919564
n×5
99899455
n÷2
9989945.5
n÷3
6659963.6666667
n÷3
4994972.75
n÷5
3995978.2
n2
399196044371881
n3
7.9758934541813E+21
n4
1.5935748184216E+29
n5
3.1839451172408E+36
2 √n4469.8871350404
3 √n271.35075744619
4 √n66.857214532468
5 √n28.848193532705
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
19979892 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9989946 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4469.8872469001 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999998998994 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19979891 can be divided by 2 positive divisors.
The sum of these divisors (counting 19979891) is 19979892, the average is 9989946.
Base
System
Value
2
Binary
1001100001101111001110011
3
Ternary
1101121002020222
4
Quaternary
1030031321303
5
Quinary
20103324031
6
Senary
1552123255
8
Octal
114157163
10
Decimal
19979891
12
Duodecimal
683652b
16
Hexadecimal
130de73
20
Vigesimal
64h9eb
36
Base36
bw8kz
md5
fc2f0b0b337d218052894ef864758d33
sha1
c6e6235faf1b8fa892c1b74c28e838e0a63bcc26
sha256
bb94265b4a2917218ad5490cfcc6c0a956e686d34e0513e2159ce780bb172823
sha512
e8b5c874526732694bd84594f1b725a07418b6f6aaca81cf30a2f429c61f41820e2ac543c270ee82c59f7a50fabc8a29fcea48f8d7b29f90ca9381078a81db5e
ripemd-160
4736da4ce9db2d5e659c3384fd7757f51f68846d
Diameter
39959782
Circumference
125537357.57025
Area
1.2541113603408E+15
Volume
3.3409344375295E+22
Surface area
5.0164454413632E+15
Circumference
125537357.57025
Perimeter
79919564
Area
399196044371881
Diagonal
28255832.826936
Surface area
2395176266231286
Volume
7.9758934541813E+21
Space diagonal
34606186.341688
Perimeter
59939673
Area
1.7285695775815E+14
Altitude
17303093.170844
Surface area
1.7285695775815E+14
Volume
9.3996805791217E+20
Height
9418610.942312