81817963 is an odd 8-digits prime number following 81817962
and preceding 81817964 . In scientific notation, it is written as 8.1817963 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 81817962 positive integers (up to 81817963) that are relatively prime to 81817963.
81817963 has 2 divisors, whose sum is 81817964
The reverse of 81817963 is 36971818
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
eighty-one million eight hundred seventeen thousand nine hundred sixty-three
Scientific notation
8.1817963 × 10^7
Engineering notation
8.1817963 × 10^6
Prime Factorization
81817963
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81817963 Product of the distinct prime numbers
The prime factorization of 81817963 is 81817963.
Since it has a total of 1 prime factors.
6 , 2 , 30 , 38 , 125 , 74 , 1377 , 2299 , 9097 , 78948 , 861018 , 939470 , 3489342 , 3756397 , 76923145 , 96789427 , 263651564 , 508401555 , 8961936019 , 1851405442
n×2
163635926
n×3
245453889
n×4
327271852
n×5
409089815
n÷2
40908981.5
n÷3
27272654.333333
n÷3
20454490.75
n÷5
16363592.6
n2
6694179069469369
n3
5.4770409542122E+23
n4
4.4812033414122E+31
n5
3.6664292918314E+39
2 √n9045.3282416947
3 √n434.12642405526
4 √n95.106930566046
5 √n38.24456561708
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81817964 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40908982 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9045.3282969719 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999755555 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81817963 can be divided by 2 positive divisors.
The sum of these divisors (counting 81817963) is 81817964, the average is 40908982.
Base
System
Value
2
Binary
100111000000111000101101011
3
Ternary
12200221210010221
4
Quaternary
10320013011223
5
Quinary
131421133323
6
Senary
12041350511
8
Octal
470070553
10
Decimal
81817963
12
Duodecimal
23498437
16
Hexadecimal
4e0716b
20
Vigesimal
15b74i3
36
Base36
1cpn57
md5
77cb2f6bd16365aa87ccdea39b94a352
sha1
748d6b6ac325d55ffbf6268b206673d84a70160b
sha256
202edf0129dce992d01734b965cb248b9104f52a0d599bb4bd90b95db58e6f0a
sha512
ebfc81dd9091c4d85295bdb0fafef1b543bd7ad048581a06b9edb383e5c068ecb3933b5f1d01afe88a82eefb9d63fc6424af8b00bb7cf0e19c2e086d7734d606
ripemd-160
d3873125837c0624cddfa9beb80bb7cc9621000c
Diameter
163635926
Circumference
514077422.98496
Area
2.103038378646E+16
Volume
2.2942175500218E+24
Surface area
8.4121535145838E+16
Circumference
514077422.98496
Perimeter
327271852
Area
6694179069469369
Diagonal
115708072.92034
Surface area
40165074416816214
Volume
5.4770409542122E+23
Space diagonal
141712868.88779
Perimeter
245453889
Area
2.8986645658213E+15
Altitude
70856434.443895
Surface area
2.8986645658213E+15
Volume
6.4547546659331E+22
Height
38569357.640113