81047029 is an odd 8-digits composite number following 81047028
and preceding 81047030 . In scientific notation, it is written as 8.1047029 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 69468840 positive integers (up to 81047029) that are relatively prime to 81047029.
81047029 has 6 divisors, whose sum is 94279254
The reverse of 81047029 is 92074018
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million forty-seven thousand twenty-nine
Scientific notation
8.1047029 × 10^7
Engineering notation
8.1047029 × 10^6
Prime Factorization
7 × 7 × 1654021
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
11578147
Product of the distinct prime numbers
The prime factorization of 81047029 is 7 × 7 × 1654021.
Since it has a total of 3 prime factors.
7 , 10 , 64 , 72 , 880 , 372 , 617 , 1774 , 30731 , 14864 , 158178 , 783527 , 6083890 , 1307864 , 86702663 , 81615570 , 528211803 , 351398561 , 3815966222 , 7250834991
n×2
162094058
n×3
243141087
n×4
324188116
n×5
405235145
n÷2
40523514.5
n÷3
27015676.333333
n÷3
20261757.25
n÷5
16209405.8
n2
6568620909726841
n3
5.3236720936064E+23
n4
4.3146780655701E+31
n5
3.4969183830592E+39
2 √n
9002.6123430924
3 √n
432.75859261354
4 √n
94.882097063105
5 √n
38.172220148591
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81047028
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81047029 can be divided by 6 positive divisors.
The sum of these divisors (counting 81047029) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110101001010110111110101
3
Ternary
12122111121121211
4
Quaternary
10311022313311
5
Quinary
131222001104
6
Senary
12013041421
8
Octal
465126765
10
Decimal
81047029
12
Duodecimal
23186271
16
Hexadecimal
4d4adf5
20
Vigesimal
156ahb9
36
Base36
1c94ad
md5
539ec06b29331b4bfe87c902a16ff23f
sha1
99960114a7f534ee1082708bd1c440933bc677cf
sha256
9bd9ab1b96ea7abf625e73d991b974093238dfccafaa1b46ad86f1ec9993c0b8
sha512
60afa382f6bbff0456c0db51869bec389055294654001ea715ec3db4498d74f966b526c12faa938c7413f2d2211aa469080d3126fada941fa5e876ce32254a0e
ripemd-160
69055b26398d51f7087ee72b12c16ffe0e39a1d1
Diameter
162094058
Circumference
509233501.80336
Area
2.0635931194214E+16
Volume
2.2299745519193E+24
Surface area
8.2543724776857E+16
Circumference
509233501.80336
Perimeter
324188116
Area
6568620909726841
Diagonal
114617807.60185
Surface area
39411725458361046
Volume
5.3236720936064E+23
Space diagonal
140377572.03051
Perimeter
243141087
Area
2.8442962878265E+15
Altitude
70188786.015254
Surface area
2.8442962878265E+15
Volume
6.2740077303378E+22
Height
38205935.867282