1640890921 is an odd 10-digits composite number following 1640890920
and preceding 1640890922 . In scientific notation, it is written as 1.640890921 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1640714500 positive integers (up to 1640890921) that are relatively prime to 1640890921.
1640890921 has 4 divisors, whose sum is 1641067344
The reverse of 1640890921 is 1290980461
Previous prime number is 166571
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion six hundred forty million eight hundred ninety thousand nine hundred twenty-one
Scientific notation
1.640890921 × 10^9
Engineering notation
1.640890921 × 10^9
Prime Factorization
166571 × 9851
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1640890921
Product of the distinct prime numbers
The prime factorization of 1640890921 is 166571 × 9851.
Since it has a total of 2 prime factors.
10 , 6 , 92 , 86 , 421 , 327 , 4157 , 2324 , 42143 , 90547 , 333337 , 166784 , 4430237 , 1873448 , 13623818 , 34554401 , 528817175 , 967775672 , 7423101417 , 2206651373
n×2
3281781842
n×3
4922672763
n×4
6563563684
n×5
8204454605
n÷2
820445460.5
n÷3
546963640.33333
n÷3
410222730.25
n÷5
328178184.2
n2
2692523014620228241
n3
4.4181365692739E+27
n4
7.2496801842596E+36
n5
1.1895934394505E+46
2 √n
40507.911832135
3 √n
1179.4872139935
4 √n
201.26577412003
5 √n
69.665208688272
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1640890920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1640890921 can be divided by 4 positive divisors.
The sum of these divisors (counting 1640890921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100001110011100000001000101001
3
Ternary
11020100121220011211
4
Quaternary
1201303200020221
5
Quinary
11330032002141
6
Senary
430453553121
8
Octal
14163401051
10
Decimal
1640890921
12
Duodecimal
3996457a1
16
Hexadecimal
61ce0229
20
Vigesimal
15cfb761
36
Base36
r4xzjd
md5
7289bbbe1133b323655e1a0bebb0ec75
sha1
8d73d605ba33587f0ecc56f833adfb0303983c4d
sha256
055f20c202dae6a91ee33f674380084f4119e0bf587ee18a439d8e63bf68aa7b
sha512
c19b2c1cf020c843964f3a810c309188bf9d821e68fe7a771eee06342d1d2985989f53f113d3705cb645eb55413ecb2c20fcae79b07c144309db48a4265a358e
ripemd-160
988cdcd6a6a091a1ac2fc250a428fde7a07a0919
Diameter
3281781842
Circumference
10310021725.512
Area
8.4588105223524E+18
Volume
1.8506647184783E+28
Surface area
3.3835242089409E+19
Circumference
10310021725.512
Perimeter
6563563684
Area
2692523014620228241
Diagonal
2320570194.8531
Surface area
1.6155138087721E+19
Volume
4.4181365692739E+27
Space diagonal
2842106444.8505
Perimeter
4922672763
Area
1.1658966654677E+18
Altitude
1421053222.4252
Surface area
1.1658966654677E+18
Volume
5.2068238805697E+26
Height
773523398.28436