129721144 is an even 9-digits composite number following 129721143
and preceding 129721145 . In scientific notation, it is written as 1.29721144 × 10^8.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 55594752 positive integers (up to 129721144) that are relatively prime to 129721144.
129721144 has 16 divisors, whose sum is 277974000
The reverse of 129721144 is 441127921
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-nine million seven hundred twenty-one thousand one hundred forty-four
Scientific notation
1.29721144 × 10^8
Engineering notation
1.29721144 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 2316449
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
32430286
Product of the distinct prime numbers
The prime factorization of 129721144 is 2 × 2 × 2 × 7 × 2316449.
Since it has a total of 5 prime factors.
10 , 2 , 84 , 68 , 402 , 950 , 7003 , 2870 , 96496 , 33603 , 401151 , 950089 , 473986 , 7154931 , 22835541 , 75383193 , 370343541 , 125886672 , 8091343761 , 6372984870
n×2
259442288
n×3
389163432
n×4
518884576
n×5
648605720
n÷2
64860572
n÷3
43240381.333333
n÷3
32430286
n÷5
25944228.8
n2
16827575200668736
n3
2.1828923057768E+24
n4
2.8316728713416E+32
n5
3.673278443042E+40
2 √n
11389.519041645
3 √n
506.21723033326
4 √n
106.7216896495
5 √n
41.937462966686
1 , 2 , 4 , 7 , 8 , 14 , 28 , 56 , 2316449 , 4632898 , 9265796 , 16215143 , 18531592 , 32430286 , 64860572 , 129721144
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-129721143
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129721144 can be divided by 16 positive divisors.
The sum of these divisors (counting 129721144) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101110110110001100111000
3
Ternary
100001002111221211
4
Quaternary
13232312030320
5
Quinary
231202034034
6
Senary
20512212504
8
Octal
756661470
10
Decimal
129721144
12
Duodecimal
3753a134
16
Hexadecimal
7bb6338
20
Vigesimal
20af2h4
36
Base36
258dh4
md5
cffebca5a021b6b54dd0bdd87e134642
sha1
54ef3d2c288ea7da25d30342384030d4dc63817d
sha256
9f3975e015c65c048014a10cc43f420ac8a8b567645a18b39d75c0ac58d05f05
sha512
ce334bd81f4814f6da269ff792f927cd3ed57ba252aa56a657c5529b92dfb190eeeee7aaa58d893818bfa91c9a3b765cf3dbdb7ce4e04e246f9ddcb4b8bb6591
ripemd-160
5a9319b2af39732385a1827da58aec8a13cca4aa
Diameter
259442288
Circumference
815061986.01133
Area
5.2865386628151E+16
Volume
9.1436779085413E+24
Surface area
2.114615465126E+17
Circumference
815061986.01133
Perimeter
518884576
Area
16827575200668736
Diagonal
183453401.17135
Surface area
100965451204012416
Volume
2.1828923057768E+24
Space diagonal
224683612.22396
Perimeter
389163432
Area
7.2865538039361E+15
Altitude
112341806.11198
Surface area
7.2865538039361E+15
Volume
2.5725632533578E+23
Height
61151133.723784