29121781 is an odd 8-digits composite number following 29121780
and preceding 29121782 . In scientific notation, it is written as 2.9121781 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 26881632 positive integers (up to 29121781) that are relatively prime to 29121781.
29121781 has 4 divisors, whose sum is 31361932
The reverse of 29121781 is 18712192
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-nine million one hundred twenty-one thousand seven hundred eighty-one
Scientific notation
2.9121781 × 10^7
Engineering notation
2.9121781 × 10^6
Prime Factorization
13 × 2240137
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
29121781
Product of the distinct prime numbers
The prime factorization of 29121781 is 13 × 2240137.
Since it has a total of 2 prime factors.
8 , 9 , 13 , 20 , 848 , 304 , 235 , 1737 , 30275 , 76617 , 240661 , 127435 , 170836 , 2605140 , 2925807 , 53035628 , 644823657 , 79220907 , 2048162993 , 8620354987
n×2
58243562
n×3
87365343
n×4
116487124
n×5
145608905
n÷2
14560890.5
n÷3
9707260.3333333
n÷3
7280445.25
n÷5
5824356.2
n2
848078128611961
n3
2.4697545532327E+22
n4
7.1923651222997E+29
n5
2.0945448196365E+37
2 √n
5396.4600433988
3 √n
307.66113924186
4 √n
73.460601980918
5 √n
31.105958361692
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
-29121780
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 29121781 can be divided by 4 positive divisors.
The sum of these divisors (counting 29121781) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101111000101110011110101
3
Ternary
2000210112120111
4
Quaternary
1233011303311
5
Quinary
24423344111
6
Senary
2520103021
8
Octal
157056365
10
Decimal
29121781
12
Duodecimal
9904a71
16
Hexadecimal
1bc5cf5
20
Vigesimal
920491
36
Base36
hc6id
md5
528d51f9f918a9e1c8e357c9547be571
sha1
2db4a8c8d9f6fa949a411c7532374c15a8c9032b
sha256
59a5a7742c38ac462836b3132fd134a800d5e2755596e195863a7203a7296d26
sha512
c96337b16ea29d84dd1ed5c70fbf384be9822344d8e53534460f05d38f9a80ae340a1c6a3d1c4f31d2e62fe6403ab00e65afca70ff75892b8fedba8d86cd2a73
ripemd-160
a23701070061ff62cf6437c7a05e847e27b1354b
Diameter
58243562
Circumference
182977546.4981
Area
2.6643160185175E+15
Volume
1.0345283680808E+23
Surface area
1.065726407407E+16
Circumference
182977546.4981
Perimeter
116487124
Area
848078128611961
Diagonal
41184417.650659
Surface area
5088468771671766
Volume
2.4697545532327E+22
Space diagonal
50440404.298894
Perimeter
87365343
Area
3.6722860188596E+14
Altitude
25220202.149447
Surface area
3.6722860188596E+14
Volume
2.9106336540954E+21
Height
13728139.216886