129804781 is an odd 9-digits composite number following 129804780
and preceding 129804782 . In scientific notation, it is written as 1.29804781 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 125617500 positive integers (up to 129804781) that are relatively prime to 129804781.
129804781 has 4 divisors, whose sum is 133992064
The reverse of 129804781 is 187408921
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-nine million eight hundred four thousand seven hundred eighty-one
Scientific notation
1.29804781 × 10^8
Engineering notation
1.29804781 × 10^6
Prime Factorization
31 × 4187251
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129804781
Product of the distinct prime numbers
The prime factorization of 129804781 is 31 × 4187251.
Since it has a total of 2 prime factors.
1 , 5 , 64 , 17 , 836 , 142 , 726 , 9393 , 47683 , 97096 , 317833 , 916722 , 6452125 , 5716103 , 56849627 , 69134590 , 776250511 , 466859698 , 7560817421 , 8725480028
n×2
259609562
n×3
389414343
n×4
519219124
n×5
649023905
n÷2
64902390.5
n÷3
43268260.333333
n÷3
32451195.25
n÷5
25960956.2
n2
16849281170457961
n3
2.1871172523387E+24
n4
2.8389827596115E+32
n5
3.6851353537415E+40
2 √n
11393.190115152
3 √n
506.3260005596
4 √n
106.73888754878
5 √n
41.942869362666
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
-129804780
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 129804781 can be divided by 4 positive divisors.
The sum of these divisors (counting 129804781) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101111001010100111101101
3
Ternary
100001020202200111
4
Quaternary
13233022213231
5
Quinary
231212223111
6
Senary
20514100021
8
Octal
757124755
10
Decimal
129804781
12
Duodecimal
3757a611
16
Hexadecimal
7bca9ed
20
Vigesimal
20b5bj1
36
Base36
25a60d
md5
e8023c4cd68def52eabf884b37630493
sha1
57c3a695687685b75c2dc2c411b6fbb7d6a52533
sha256
ed58ddd60a3cda0d5f9ce555740bc1a3baccf1f7cefea03b868f3c4fc44f4b9c
sha512
77a36c14c51ae5d7651f4564318533fe3a7c8e84bf05a5db0f6852aeb6b5c6dc703537ed83e699fd3287fc06bf164af861ed32f560307bafc29bc84450434782
ripemd-160
70eaf493e4dcbc72dacc4e0093cd953666d1e504
Diameter
259609562
Circumference
815587492.78086
Area
5.293357794338E+16
Volume
9.1613753233158E+24
Surface area
2.1173431177352E+17
Circumference
815587492.78086
Perimeter
519219124
Area
16849281170457961
Diagonal
183571681.75107
Surface area
101095687022747766
Volume
2.1871172523387E+24
Space diagonal
224828475.75735
Perimeter
389414343
Area
7.2959527645617E+15
Altitude
112414237.87868
Surface area
7.2959527645617E+15
Volume
2.5775424006313E+23
Height
61190560.58369