71961808 is an even 8-digits composite number following 71961807
and preceding 71961809 . In scientific notation, it is written as 7.1961808 × 10^7.
The sum of its digits is 40. It has a total of 6 prime factors and 20 positive divisors.
There are 35887104 positive integers (up to 71961808) that are relatively prime to 71961808.
71961808 has 20 divisors, whose sum is 139789540
The reverse of 71961808 is 80816917
Previous prime number is 397
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-one million nine hundred sixty-one thousand eight hundred eight
Scientific notation
7.1961808 × 10^7
Engineering notation
7.1961808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 397 × 11329
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8995226
Product of the distinct prime numbers
The prime factorization of 71961808 is 2 × 2 × 2 × 2 × 397 × 11329.
Since it has a total of 6 prime factors.
9 , 9 , 49 , 77 , 124 , 865 , 3450 , 3707 , 2641 , 54803 , 36756 , 446211 , 2543659 , 9509582 , 92684901 , 19308975 , 787753030 , 705969348 , 3899365728 , 8758079420
n×2
143923616
n×3
215885424
n×4
287847232
n×5
359809040
n÷2
35980904
n÷3
23987269.333333
n÷3
17990452
n÷5
14392361.6
n2
5178501810628864
n3
3.7265435302413E+23
n4
2.6816881002686E+31
n5
1.9297912418742E+39
2 √n
8483.0305905378
3 √n
415.94319367322
4 √n
92.103369050962
5 √n
37.275236984367
1 , 2 , 4 , 8 , 16 , 397 , 794 , 1588 , 3176 , 6352 , 11329 , 22658 , 45316 , 90632 , 181264 , 4497613 , 8995226 , 17990452 , 35980904 , 71961808
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71961807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71961808 can be divided by 20 positive divisors.
The sum of these divisors (counting 71961808) is 1, the average is 0.05.
Base
System
Value
2
Binary
100010010100000110011010000
3
Ternary
12000102001001011
4
Quaternary
10102200303100
5
Quinary
121410234213
6
Senary
11050220304
8
Octal
422406320
10
Decimal
71961808
12
Duodecimal
20124694
16
Hexadecimal
44a0cd0
20
Vigesimal
129f4a8
36
Base36
16ue34
md5
256b0faf3c41ec6b1f1c8df54c807270
sha1
61f35203e9643fdff88218ac406e462a7a8ff30f
sha256
265452037ea54a10adb76150019afe131b91dccfe9fafa931da2cd475516d2c6
sha512
e45f0dd1f69d869fe853a7481ebf1b5af9e54f9f3137270d926c8461bef7b64f9d619251571433dc6d7c731fc277e51dff074def3cbbacf3acaa5fc839668288
ripemd-160
3b9da42254559e6a07a0e333e823c403689af8b3
Diameter
143923616
Circumference
452149374.70368
Area
1.6268743244873E+16
Volume
1.5609709037185E+24
Surface area
6.5074972979492E+16
Circumference
452149374.70368
Perimeter
287847232
Area
5178501810628864
Diagonal
101769364.84649
Surface area
31071010863773184
Volume
3.7265435302413E+23
Space diagonal
124641507.66052
Perimeter
215885424
Area
2.2423570607742E+15
Altitude
62320753.830258
Surface area
2.2423570607742E+15
Volume
4.3917736677008E+22
Height
33923121.615496