661004021 is an odd 9-digits composite number following 661004020
and preceding 661004022 . In scientific notation, it is written as 6.61004021 × 10^8.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 658017360 positive integers (up to 661004021) that are relatively prime to 661004021.
661004021 has 8 divisors, whose sum is 663997344
The reverse of 661004021 is 120400166
Previous prime number is 997
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 20
Digital Root 2
Name
six hundred sixty-one million four thousand twenty-one
Scientific notation
6.61004021 × 10^8
Engineering notation
6.61004021 × 10^6
Prime Factorization
331 × 997 × 2003
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
661004021
Product of the distinct prime numbers
The prime factorization of 661004021 is 331 × 997 × 2003.
Since it has a total of 3 prime factors.
3 , 2 , 33 , 2 , 372 , 38 , 8784 , 3051 , 58694 , 54745 , 74668 , 477317 , 6391113 , 5122541 , 91743530 , 96011060 , 722519783 , 332196158 , 5738733367 , 5858509915
n×2
1322008042
n×3
1983012063
n×4
2644016084
n×5
3305020105
n÷2
330502010.5
n÷3
220334673.66667
n÷3
165251005.25
n÷5
132200804.2
n2
436926315778168441
n3
2.8881005161009E+26
n4
1.9090460541948E+35
n5
1.261887118097E+44
2 √n
25709.998463633
3 √n
871.10004022455
4 √n
160.34337673765
5 √n
58.081900738851
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
-661004020
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 661004021 can be divided by 8 positive divisors.
The sum of these divisors (counting 661004021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011001100001111011110101
3
Ternary
1201001210111001102
4
Quaternary
213121201323311
5
Quinary
2323204112041
6
Senary
145331335445
8
Octal
4731417365
10
Decimal
661004021
12
Duodecimal
165451585
16
Hexadecimal
27661ef5
20
Vigesimal
a6b5a11
36
Base36
axjlyt
md5
d7e07b507b71cece89d0e7966f90671d
sha1
ecca562151843db6523fe4f5252dda113388a82b
sha256
bb1ff5512a5c7f2016d0461006d95a610674eba9572ccf28f0753d449b6e7e89
sha512
c2a9d36eb4d88b75b11f1f76b6f724f286564368aa4505b42738ddf347e644e1c0a051265dfcf7ba04d5e7e0cb4f8cb0da7994cb641ca5ff474ee600f6116d17
ripemd-160
4d2e81c025c52104af350542b66c7e1fcadffdfd
Diameter
1322008042
Circumference
4153210752.7338
Area
1.3726445038087E+18
Volume
1.2097647152282E+27
Surface area
5.490578015235E+18
Circumference
4153210752.7338
Perimeter
2644016084
Area
436926315778168441
Diagonal
934800851.28135
Surface area
2621557894669010646
Volume
2.8881005161009E+26
Space diagonal
1144892548.3793
Perimeter
1983012063
Area
1.8919464452292E+17
Altitude
572446274.18966
Surface area
1.8919464452292E+17
Volume
3.4036590994721E+25
Height
311600283.76045