19902790 is an even 8-digits composite number following 19902789
and preceding 19902791 . In scientific notation, it is written as 1.9902790 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 7961112 positive integers (up to 19902790) that are relatively prime to 19902790.
19902790 has 8 divisors, whose sum is 35825040
The reverse of 19902790 is 09720991
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
nineteen million nine hundred two thousand seven hundred ninety
Scientific notation
1.9902790 × 10^7
Engineering notation
1.9902790 × 10^6
Prime Factorization
2 × 5 × 1990279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19902790
Product of the distinct prime numbers
The prime factorization of 19902790 is 2 × 5 × 1990279.
Since it has a total of 3 prime factors.
6 , 2 , 44 , 100 , 25 , 425 , 5396 , 1321 , 22840 , 43016 , 45585 , 697903 , 8423459 , 6026689 , 48136209 , 52879859 , 701202495 , 969675248 , 6890477359 , 1017447204
n×2
39805580
n×3
59708370
n×4
79611160
n×5
99513950
n÷2
9951395
n÷3
6634263.3333333
n÷3
4975697.5
n÷5
3980558
n2
396121049784100
n3
7.8839140684325E+21
n4
1.5691188608206E+29
n5
3.1229843171951E+36
2 √n
4461.2543079273
3 √n
271.00126631671
4 √n
66.79262165784
5 √n
28.825894454186
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
-19902789
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 19902790 can be divided by 8 positive divisors.
The sum of these divisors (counting 19902790) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011111011000101000110
3
Ternary
1101110011111101
4
Quaternary
1023323011012
5
Quinary
20043342130
6
Senary
1550330314
8
Octal
113730506
10
Decimal
19902790
12
Duodecimal
67b999a
16
Hexadecimal
12fb146
20
Vigesimal
647gja
36
Base36
bul3a
md5
54f7b00415e8d7744cd4af9f2d284728
sha1
ac5011bcdc2a6156511f4cb1ff1d16251e287a9d
sha256
6869eb18551eee94a44788cdb436743acebb572fe47a7e968d70a762500644dd
sha512
440955d5fbab1ed51f009ad124ac0d2b68ab3a9e18acebbbec607d432bbad3bf40afa53aa95f93ee5f74efbfc75eabb92dfcd52d9f4c26588be679d55c3e037a
ripemd-160
f771fc1914ff4e91af7d65ee3edf360337641423
Diameter
39805580
Circumference
125052917.69988
Area
1.244450979934E+15
Volume
3.3024062025228E+22
Surface area
4.977803919736E+15
Circumference
125052917.69988
Perimeter
79611160
Area
396121049784100
Diagonal
28146795.547064
Surface area
2376726298704600
Volume
7.8839140684325E+21
Space diagonal
34472643.492374
Perimeter
59708370
Area
1.715254460434E+14
Altitude
17236321.746187
Surface area
1.715254460434E+14
Volume
9.2912818334677E+20
Height
9382265.1823545