19991212 is an even 8-digits composite number following 19991211
and preceding 19991213 . In scientific notation, it is written as 1.9991212 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 9986400 positive integers (up to 19991212) that are relatively prime to 19991212.
19991212 has 12 divisors, whose sum is 35016856
The reverse of 19991212 is 21219991
Previous prime number is 1753
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
nineteen million nine hundred ninety-one thousand two hundred twelve
Scientific notation
1.9991212 × 10^7
Engineering notation
1.9991212 × 10^6
Prime Factorization
2 × 2 × 1753 × 2851
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9995606
Product of the distinct prime numbers
The prime factorization of 19991212 is 2 × 2 × 1753 × 2851.
Since it has a total of 4 prime factors.
9 , 1 , 28 , 36 , 88 , 318 , 5336 , 6682 , 40184 , 67019 , 283371 , 246440 , 134528 , 9066445 , 29025065 , 42076380 , 11387594 , 410541704 , 2070277511 , 8833447423
n×2
39982424
n×3
59973636
n×4
79964848
n×5
99956060
n÷2
9995606
n÷3
6663737.3333333
n÷3
4997803
n÷5
3998242.4
n2
399648557228944
n3
7.989459033058E+21
n4
1.5971896929518E+29
n5
3.1929757756014E+36
2 √n
4471.1533187758
3 √n
271.40199866494
4 √n
66.866683174626
5 √n
28.851461982999
1 , 2 , 4 , 1753 , 2851 , 3506 , 5702 , 7012 , 11404 , 4997803 , 9995606 , 19991212
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19991211
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19991212 can be divided by 12 positive divisors.
The sum of these divisors (counting 19991212) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100010000101010101100
3
Ternary
1101121122210021
4
Quaternary
1030100222230
5
Quinary
20104204322
6
Senary
1552251524
8
Octal
114205254
10
Decimal
19991212
12
Duodecimal
6840ba4
16
Hexadecimal
1310aac
20
Vigesimal
64ii0c
36
Base36
bwhbg
md5
db513c3c96d7819bd9061b8ed2b5b3d0
sha1
d71e94cceedc0d63fbf6ffd82fa7e671d80200ff
sha256
137931b8abaeed19b78b160591761adba1a4234a7a5aa0a216b23293950c2965
sha512
dee7bb9eec2bb0e22c2ae83460d6032efe4384ef6c1a21a7654c6584bd4d15502541c3ad21cae26c8009b34ef46fe746237cf3a9bd1a73481bbcf8b9dac94447
ripemd-160
12412f50ff5a3b64e06e18a7bc02ff971b673f1f
Diameter
39982424
Circumference
125608489.51111
Area
1.2555329714082E+15
Volume
3.3466167739215E+22
Surface area
5.0221318856328E+15
Circumference
125608489.51111
Perimeter
79964848
Area
399648557228944
Diagonal
28271843.138676
Surface area
2397891343373664
Volume
7.989459033058E+21
Space diagonal
34625794.888881
Perimeter
59973636
Area
1.7305290157303E+14
Altitude
17312897.44444
Surface area
1.7305290157303E+14
Volume
9.4156677671457E+20
Height
9423947.7128919