81965629 is an odd 8-digits composite number following 81965628
and preceding 81965630 . In scientific notation, it is written as 8.1965629 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 75697776 positive integers (up to 81965629) that are relatively prime to 81965629.
81965629 has 8 divisors, whose sum is 88479360
The reverse of 81965629 is 92656918
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighty-one million nine hundred sixty-five thousand six hundred twenty-nine
Scientific notation
8.1965629 × 10^7
Engineering notation
8.1965629 × 10^6
Prime Factorization
23 × 29 × 122887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81965629
Product of the distinct prime numbers
The prime factorization of 81965629 is 23 × 29 × 122887.
Since it has a total of 3 prime factors.
3 , 6 , 2 , 35 , 675 , 417 , 5771 , 5924 , 22204 , 32074 , 768458 , 493719 , 5457624 , 2868028 , 14093902 , 70864645 , 204008358 , 416177781 , 6688918905 , 389373334
n×2
163931258
n×3
245896887
n×4
327862516
n×5
409828145
n÷2
40982814.5
n÷3
27321876.333333
n÷3
20491407.25
n÷5
16393125.8
n2
6718364337365641
n3
5.5067495876334E+23
n4
4.5136419369586E+31
n5
3.6996350044359E+39
2 √n
9053.4871182324
3 √n
434.38743921039
4 √n
95.149814073557
5 √n
38.258360508119
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
-81965628
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 81965629 can be divided by 8 positive divisors.
The sum of these divisors (counting 81965629) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000101011001000111101
3
Ternary
12201020021201001
4
Quaternary
10320223020331
5
Quinary
131440400004
6
Senary
12044450301
8
Octal
470531075
10
Decimal
81965629
12
Duodecimal
23549991
16
Hexadecimal
4e2b23d
20
Vigesimal
15c5e19
36
Base36
1cst31
md5
af5cfe7a426a9330d987822c26e91fb1
sha1
16d1bf2679c0d60190d136b414ec497771389286
sha256
d73205104aeb73892bf0ef413de08788b63e6ea01955ab6f2e631dcc29845ba4
sha512
2eb5af1a34acb7468239822a7682efae6263d9dd30e05f5250c2b6adc8df5bb930a41fe1c9eb34f22f7efaaa7ad066a618f8b6b0eccefeaa46b7e0d4becb5ed2
ripemd-160
90cee58dac32425ce27cf9e88ac2851441f6b453
Diameter
163931258
Circumference
515005235.82653
Area
2.1106364046408E+16
Volume
2.306661873289E+24
Surface area
8.442545618563E+16
Circumference
515005235.82653
Perimeter
327862516
Area
6718364337365641
Diagonal
115916904.18024
Surface area
40310186024193846
Volume
5.5067495876334E+23
Space diagonal
141968633.90234
Perimeter
245896887
Area
2.909137094019E+15
Altitude
70984316.95117
Surface area
2.909137094019E+15
Volume
6.4897666261864E+22
Height
38638968.06008