81838315 is an odd 8-digits composite number following 81838314
and preceding 81838316 . In scientific notation, it is written as 8.1838315 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 60434400 positive integers (up to 81838315) that are relatively prime to 81838315.
81838315 has 4 divisors, whose sum is 83097432
The reverse of 81838315 is 51383818
Previous prime number is 65
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million eight hundred thirty-eight thousand three hundred fifteen
Scientific notation
8.1838315 × 10^7
Engineering notation
8.1838315 × 10^6
Prime Factorization
65 × 1259051
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81838315
Product of the distinct prime numbers
The prime factorization of 81838315 is 65 × 1259051.
Since it has a total of 2 prime factors.
9 , 5 , 85 , 41 , 531 , 704 , 6862 , 9107 , 66598 , 74492 , 117403 , 280076 , 3029757 , 8472992 , 90220886 , 24051130 , 329672216 , 848853438 , 4291451330 , 3174912419
n×2
163676630
n×3
245514945
n×4
327353260
n×5
409191575
n÷2
40919157.5
n÷3
27279438.333333
n÷3
20459578.75
n÷5
16367663
n2
6697509802039225
n3
5.4811291689487E+23
n4
4.4856637548411E+31
n5
3.6709916335277E+39
2 √n
9046.4531723765
3 √n
434.16241700095
4 √n
95.112844413236
5 √n
38.246468074529
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81838314
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81838315 can be divided by 4 positive divisors.
The sum of these divisors (counting 81838315) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000001100000011101011
3
Ternary
12200222211001201
4
Quaternary
10320030003223
5
Quinary
131422311230
6
Senary
12042025031
8
Octal
470140353
10
Decimal
81838315
12
Duodecimal
234a8177
16
Hexadecimal
4e0c0eb
20
Vigesimal
15b9fff
36
Base36
1cq2uj
md5
162caf508dc5266375be505eee6db662
sha1
2468fbba036898ff5217e04db32e6f92179a67d1
sha256
4792b32d084ca8392846dced637ab04bf8d8e3454cc7cba7f2089aa3d1f8e7cd
sha512
c9548427bf21561a50e2724877dbd6347b5e224cb1c6a9e9c9897366af0e29dbd077490fec783b57605d2cc6c56091f48114cbbbd336885a889f8f48e4ab7270
ripemd-160
dc5d068d68ac56e59d1ccfa196a417ab5d5c3bce
Diameter
163676630
Circumference
514205298.37233
Area
2.1040847591432E+16
Volume
2.2959300174061E+24
Surface area
8.4163390365728E+16
Circumference
514205298.37233
Perimeter
327353260
Area
6697509802039225
Diagonal
115736854.99476
Surface area
40185058812235350
Volume
5.4811291689487E+23
Space diagonal
141748119.58583
Perimeter
245514945
Area
2.9001068153306E+15
Altitude
70874059.792913
Surface area
2.9001068153306E+15
Volume
6.4595726732051E+22
Height
38578951.664921