1990402021 is an odd 10-digits composite number following 1990402020
and preceding 1990402022 . In scientific notation, it is written as 1.990402021 × 10^9.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 1957938480 positive integers (up to 1990402021) that are relatively prime to 1990402021.
1990402021 has 8 divisors, whose sum is 2023128800
The reverse of 1990402021 is 1202040991
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 28
Digital Root 1
Name
one billion nine hundred ninety million four hundred two thousand twenty-one
Scientific notation
1.990402021 × 10^9
Engineering notation
1.990402021 × 10^9
Prime Factorization
109 × 139 × 131371
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990402021
Product of the distinct prime numbers
The prime factorization of 1990402021 is 109 × 139 × 131371.
Since it has a total of 3 prime factors.
1 , 2 , 41 , 44 , 470 , 830 , 5483 , 2506 , 92139 , 64272 , 811761 , 40726 , 412600 , 9574647 , 57904795 , 22867375 , 747806968 , 6466422 , 501248776 , 1350894189
n×2
3980804042
n×3
5971206063
n×4
7961608084
n×5
9952010105
n÷2
995201010.5
n÷3
663467340.33333
n÷3
497600505.25
n÷5
398080404.2
n2
3961700205200884441
n3
7.885376095028E+27
n4
1.5695068515889E+37
n5
3.1239496093758E+46
2 √n
44613.921829402
3 √n
1257.9023679352
4 √n
211.22007913407
5 √n
72.408268246911
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
-1990402020
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 1990402021 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990402021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101000110001111111100101
3
Ternary
12010201021220021101
4
Quaternary
1312220301333211
5
Quinary
13034020331041
6
Senary
525301120101
8
Octal
16650617745
10
Decimal
1990402021
12
Duodecimal
4766b9031
16
Hexadecimal
76a31fe5
20
Vigesimal
1b200511
36
Base36
wx1811
md5
2f66c83c198743bf88f5a12aecc41f74
sha1
890ef1ee6e7eb8daba750a6ffefd826177240935
sha256
b7e422013d3e44bf079e198890e36805f5177fcebae1abf9fef53394201b6325
sha512
deae92e7b60354bf4aee4b41ea1c6846d73dd60a6a9ca14c74274f73d5695b61586c54866956b93be157c95e3ad68a2a522475f31a2139d8939a454c320356ef
ripemd-160
ccf1452b63cdccbd296f29dcd85b1296a8304caf
Diameter
3980804042
Circumference
12506064733.728
Area
1.2446048260384E+19
Volume
3.303018614791E+28
Surface area
4.9784193041537E+19
Circumference
12506064733.728
Perimeter
7961608084
Area
3961700205200884441
Diagonal
2814853532.673
Surface area
2.3770201231205E+19
Volume
7.885376095028E+27
Space diagonal
3447477427.8598
Perimeter
5971206063
Area
1.715466509941E+18
Altitude
1723738713.9299
Surface area
1.715466509941E+18
Volume
9.2930048483343E+26
Height
938284510.89101