80646945 is an odd 8-digits composite number following 80646944
and preceding 80646946 . In scientific notation, it is written as 8.0646945 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 42928704 positive integers (up to 80646945) that are relatively prime to 80646945.
80646945 has 8 divisors, whose sum is 86189440
The reverse of 80646945 is 54964608
Previous prime number is 547
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty million six hundred forty-six thousand nine hundred forty-five
Scientific notation
8.0646945 × 10^7
Engineering notation
8.0646945 × 10^6
Prime Factorization
15 × 547 × 9829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80646945
Product of the distinct prime numbers
The prime factorization of 80646945 is 15 × 547 × 9829.
Since it has a total of 3 prime factors.
3 , 3 , 47 , 77 , 248 , 748 , 8105 , 1981 , 98247 , 64629 , 75628 , 200302 , 1424462 , 9219512 , 7964095 , 35301363 , 128241910 , 842020051 , 4465535560 , 8377200706
n×2
161293890
n×3
241940835
n×4
322587780
n×5
403234725
n÷2
40323472.5
n÷3
26882315
n÷3
20161736.25
n÷5
16129389
n2
6503929737833025
n3
5.2452206385088E+23
n4
4.2301102034669E+31
n5
3.4114546492293E+39
2 √n
8980.3644135414
3 √n
432.04532167683
4 √n
94.764784669947
5 √n
38.134458517427
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-80646944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80646945 can be divided by 8 positive divisors.
The sum of these divisors (counting 80646945) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110011101001001100100001
3
Ternary
12121202021210220
4
Quaternary
10303221030201
5
Quinary
131121200240
6
Senary
12000313253
8
Octal
463511441
10
Decimal
80646945
12
Duodecimal
23012829
16
Hexadecimal
4ce9321
20
Vigesimal
1540h75
36
Base36
1c0jkx
md5
fd04993922f88e70c13a25c220f643b4
sha1
ea8299da8ce57ba7145cfaa4e74ff0ddda3d542b
sha256
829d4cbaa1daab88a682e522bb1332ae6d95e62c04d2243d26f8ef5d53b242c6
sha512
2541893c2e2c300e8d4d0e47136ecdbdaf09a774630ed2af6fef71c9215bc6e97b6a0795ab5a5e67084786d865c1d0de3c1cd0d823d3247e1fce0efc1c6f7456
ripemd-160
77c2416e91ba3cc436eead5074e184bd1683c9d7
Diameter
161293890
Circumference
506719699.89292
Area
2.043269788384E+16
Volume
2.1971128832529E+24
Surface area
8.1730791535362E+16
Circumference
506719699.89292
Perimeter
322587780
Area
6503929737833025
Diagonal
114052003.38296
Surface area
39023578426998150
Volume
5.2452206385088E+23
Space diagonal
139684606.21521
Perimeter
241940835
Area
2.8162841886962E+15
Altitude
69842303.107606
Surface area
2.8162841886962E+15
Volume
6.1815518038487E+22
Height
38017334.460986