71781880 is an even 8-digits composite number following 71781879
and preceding 71781881 . In scientific notation, it is written as 7.1781880 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 16 positive divisors.
There are 28712736 positive integers (up to 71781880) that are relatively prime to 71781880.
71781880 has 16 divisors, whose sum is 161509320
The reverse of 71781880 is 08818717
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-one million seven hundred eighty-one thousand eight hundred eighty
Scientific notation
7.1781880 × 10^7
Engineering notation
7.1781880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 1794547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
17945470
Product of the distinct prime numbers
The prime factorization of 71781880 is 2 × 2 × 2 × 5 × 1794547.
Since it has a total of 5 prime factors.
4 , 2 , 75 , 15 , 994 , 955 , 485 , 6977 , 90804 , 52035 , 700817 , 255091 , 5447289 , 2917119 , 23224082 , 8474898 , 550655134 , 966017706 , 7996865717 , 3317043784
n×2
143563760
n×3
215345640
n×4
287127520
n×5
358909400
n÷2
35890940
n÷3
23927293.333333
n÷3
17945470
n÷5
14356376
n2
5152638296334400
n3
3.6986606387088E+23
n4
2.6549681412852E+31
n5
1.9057860452156E+39
2 √n
8472.4187809621
3 √n
415.59623977975
4 √n
92.045742872564
5 √n
37.256578262911
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 1794547 , 3589094 , 7178188 , 8972735 , 14356376 , 17945470 , 35890940 , 71781880
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
-71781879
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 71781880 can be divided by 16 positive divisors.
The sum of these divisors (counting 71781880) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010001110100110111111000
3
Ternary
12000001220020011
4
Quaternary
10101310313320
5
Quinary
121334010010
6
Senary
11042311304
8
Octal
421646770
10
Decimal
71781880
12
Duodecimal
20058534
16
Hexadecimal
4474df8
20
Vigesimal
128cee0
36
Base36
16qj94
md5
fd9f20eb51aed9882bd542b19a7c9099
sha1
e6cc088d2c5fe322ed1ece3c594f2a54e11acb1a
sha256
19e42e83a111ad0d646096b681f7387f1d3932604ec918eee19d1eb379b8fa70
sha512
12e4ca0238a89a4a6c59ea6e4e5edaca2dce24ca203d0eca63ac763f5fd5a7952b95fb47d27e81211696e7295141a782003b4c70c35e6fd05a562a1367e0c3c5
ripemd-160
aca5dda2f66cea73a4cbbbc61d4c02c1c02da765
Diameter
143563760
Circumference
451018853.73773
Area
1.618749061837E+16
Volume
1.5492913454252E+24
Surface area
6.4749962473478E+16
Circumference
451018853.73773
Perimeter
287127520
Area
5152638296334400
Diagonal
101514908.22864
Surface area
30915829778006400
Volume
3.6986606387088E+23
Space diagonal
124329863.22281
Perimeter
215345640
Area
2.2311578305691E+15
Altitude
62164931.611406
Surface area
2.2311578305691E+15
Volume
4.3589133648979E+22
Height
33838302.742879