681492021 is an odd 9-digits composite number following 681492020
and preceding 681492022 . In scientific notation, it is written as 6.81492021 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 389424000 positive integers (up to 681492021) that are relatively prime to 681492021.
681492021 has 4 divisors, whose sum is 713944044
The reverse of 681492021 is 120294186
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
six hundred eighty-one million four hundred ninety-two thousand twenty-one
Scientific notation
6.81492021 × 10^8
Engineering notation
6.81492021 × 10^6
Prime Factorization
21 × 32452001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
681492021
Product of the distinct prime numbers
The prime factorization of 681492021 is 21 × 32452001.
Since it has a total of 2 prime factors.
8 , 8 , 74 , 46 , 134 , 578 , 143 , 9039 , 14695 , 34298 , 187270 , 471272 , 9411401 , 3904553 , 23407300 , 19844312 , 45150032 , 534743466 , 7850476228 , 652889780
n×2
1362984042
n×3
2044476063
n×4
2725968084
n×5
3407460105
n÷2
340746010.5
n÷3
227164007
n÷3
170373005.25
n÷5
136298404.2
n2
464431374686664441
n3
3.1650627615102E+26
n4
2.1569650179334E+35
n5
1.4699544492978E+44
2 √n
26105.402142085
3 √n
880.00861777029
4 √n
161.57166255902
5 √n
58.437570893972
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
-681492020
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 681492021 can be divided by 4 positive divisors.
The sum of these divisors (counting 681492021) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000100111101011111000110101
3
Ternary
1202111100101022020
4
Quaternary
220213223320311
5
Quinary
2343430221041
6
Senary
151342423353
8
Octal
5047537065
10
Decimal
681492021
12
Duodecimal
170291b59
16
Hexadecimal
289ebe35
20
Vigesimal
acj6a11
36
Base36
b9qqlx
md5
a37525fb8c141563f4161f2dbd42a9a7
sha1
410b945782e49ed9aabd12b45adb4fa9faf0973f
sha256
826bbc2e7f3379cf916a3b7643e877dafbcdd808ad27a86399a045944c73ca10
sha512
64411319cd458828a27da72c2edec1e0b255de67f80bc701b27006d5b247eb6e7b144726ce9a28623ec6780371624f3a24ab3c87e8bb9b352f73b1b4b9568173
ripemd-160
28bc21901ac5ec9d96927b3f1b4fc5934cea8ba2
Diameter
1362984042
Circumference
4281940653.3073
Area
1.4590541948122E+18
Volume
1.3257783892948E+27
Surface area
5.8362167792489E+18
Circumference
4281940653.3073
Perimeter
2725968084
Area
464431374686664441
Diagonal
963775258.74725
Surface area
2786588248119986646
Volume
3.1650627615102E+26
Space diagonal
1180378805.3248
Perimeter
2044476063
Area
2.0110468439659E+17
Altitude
590189402.6624
Surface area
2.0110468439659E+17
Volume
3.7300622359082E+25
Height
321258419.58242