19987977 is an odd 8-digits composite number following 19987976
and preceding 19987978 . In scientific notation, it is written as 1.9987977 × 10^7.
The sum of its digits is 57. It has a total of 3 prime factors and 8 positive divisors.
There are 13164608 positive integers (up to 19987977) that are relatively prime to 19987977.
19987977 has 8 divisors, whose sum is 26972064
The reverse of 19987977 is 77978991
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
nineteen million nine hundred eighty-seven thousand nine hundred seventy-seven
Scientific notation
1.9987977 × 10^7
Engineering notation
1.9987977 × 10^6
Prime Factorization
3 × 83 × 80273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19987977
Product of the distinct prime numbers
The prime factorization of 19987977 is 3 × 83 × 80273.
Since it has a total of 3 prime factors.
1 , 5 , 49 , 23 , 46 , 918 , 3845 , 5260 , 84948 , 86265 , 4852 , 249541 , 1231652 , 2475130 , 30490631 , 96159421 , 818472071 , 337392115 , 4747622953 , 4537627537
n×2
39975954
n×3
59963931
n×4
79951908
n×5
99939885
n÷2
9993988.5
n÷3
6662659
n÷3
4996994.25
n÷5
3997595.4
n2
399519224552529
n3
7.9855810714138E+21
n4
1.5961561078705E+29
n5
3.1903931572526E+36
2 √n
4470.7915406559
3 √n
271.38735835151
4 √n
66.86397790033
5 √n
28.850528167466
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19987976
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19987977 can be divided by 8 positive divisors.
The sum of these divisors (counting 19987977) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001111111000001001
3
Ternary
1101121111100110
4
Quaternary
1030033320021
5
Quinary
20104103402
6
Senary
1552224533
8
Octal
114177011
10
Decimal
19987977
12
Duodecimal
683b149
16
Hexadecimal
130fe09
20
Vigesimal
64i9ih
36
Base36
bwetl
md5
119e81dcfb361e00a7edc167ce8d3e0f
sha1
e524948469a6d01c0898168f307828f549697f01
sha256
168b1b5fc364b49487b877a6d8606e7ca62393648ce3770e77f67a3b88252911
sha512
92df141d32f5b83b5a54fb6f9147d2f05417e260a9c3fc340c8a412d6992ea693e922e61e1d5dc362aeb3d10f4e0cac352f0284178795df391630e9ff901b54a
ripemd-160
4baca27d759dd800da86e84d28e82bd5701d2a7b
Diameter
39975954
Circumference
125588163.40664
Area
1.2551266608221E+15
Volume
3.3449923771466E+22
Surface area
5.0205066432885E+15
Circumference
125588163.40664
Perimeter
79951908
Area
399519224552529
Diagonal
28267268.157801
Surface area
2397115347315174
Volume
7.9855810714138E+21
Space diagonal
34620191.704518
Perimeter
59963931
Area
1.7299689888137E+14
Altitude
17310095.852259
Surface area
1.7299689888137E+14
Volume
9.4110975455194E+20
Height
9422422.7192672