81380462 is an even 8-digits composite number following 81380461
and preceding 81380463 . In scientific notation, it is written as 8.1380462 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 38296672 positive integers (up to 81380462) that are relatively prime to 81380462.
81380462 has 8 divisors, whose sum is 129251376
The reverse of 81380462 is 26408318
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million three hundred eighty thousand four hundred sixty-two
Scientific notation
8.1380462 × 10^7
Engineering notation
8.1380462 × 10^6
Prime Factorization
2 × 17 × 2393543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81380462
Product of the distinct prime numbers
The prime factorization of 81380462 is 2 × 17 × 2393543.
Since it has a total of 3 prime factors.
10 , 2 , 56 , 79 , 373 , 273 , 4986 , 2923 , 33375 , 14995 , 10900 , 566424 , 198590 , 1275812 , 1947681 , 67608103 , 329343861 , 976669099 , 5582282999 , 6744463225
n×2
162760924
n×3
244141386
n×4
325521848
n×5
406902310
n÷2
40690231
n÷3
27126820.666667
n÷3
20345115.5
n÷5
16276092.4
n2
6622779595333444
n3
5.3896486319241E+23
n4
4.3861209568365E+31
n5
3.5694454985524E+39
2 √n
9021.1120157107
3 √n
433.35124672825
4 √n
94.979534720437
5 √n
38.203577211888
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
-81380461
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 81380462 can be divided by 8 positive divisors.
The sum of these divisors (counting 81380462) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110011100010001101110
3
Ternary
12200010120000012
4
Quaternary
10312130101232
5
Quinary
131313133322
6
Senary
12024133222
8
Octal
466342156
10
Decimal
81380462
12
Duodecimal
23307212
16
Hexadecimal
4d9c46e
20
Vigesimal
158cb32
36
Base36
1cg9ke
md5
69c6064bfd14a5409b8bb6d94e9623a2
sha1
ae0488e91d180439a2d2673d3b4ff848bbd66e09
sha256
b05ee8f4d80b0a31648801d0a787525b0e96c2c89eb6eec7966b29055743f19e
sha512
98d6b6a584866334042e334a305a11179ccc3ef958ceb4cef629ffe586f959f0935354183a512c32b3fdfa2796c9e24714c6c48c0f9277846ad28d655b2ba679
ripemd-160
f757e1fba018b061160f26713ac78cf40b8bfae8
Diameter
162760924
Circumference
511328523.12989
Area
2.0806075723044E+16
Volume
2.2576107396644E+24
Surface area
8.3224302892176E+16
Circumference
511328523.12989
Perimeter
325521848
Area
6622779595333444
Diagonal
115089353.07259
Surface area
39736677572000664
Volume
5.3896486319241E+23
Space diagonal
140955094.92743
Perimeter
244141386
Area
2.867747686612E+15
Altitude
70477547.463714
Surface area
2.867747686612E+15
Volume
6.3517618264105E+22
Height
38363117.690863