81361202 is an even 8-digits composite number following 81361201
and preceding 81361203 . In scientific notation, it is written as 8.1361202 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 37408512 positive integers (up to 81361202) that are relatively prime to 81361202.
81361202 has 16 divisors, whose sum is 131929560
The reverse of 81361202 is 20216318
Previous prime number is 269
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million three hundred sixty-one thousand two hundred two
Scientific notation
8.1361202 × 10^7
Engineering notation
8.1361202 × 10^6
Prime Factorization
2 × 13 × 269 × 11633
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81361202
Product of the distinct prime numbers
The prime factorization of 81361202 is 2 × 13 × 269 × 11633.
Since it has a total of 4 prime factors.
5 , 10 , 19 , 9 , 887 , 485 , 7903 , 7550 , 29514 , 38698 , 604553 , 553772 , 5638239 , 6312960 , 2798059 , 20114549 , 990156161 , 657937864 , 128905236 , 9299438589
n×2
162722404
n×3
244083606
n×4
325444808
n×5
406806010
n÷2
40680601
n÷3
27120400.666667
n÷3
20340300.5
n÷5
16272240.4
n2
6619645190884804
n3
5.3858228954391E+23
n4
4.3819702453204E+31
n5
3.5652236628751E+39
2 √n
9020.0444566532
3 √n
433.31705750835
4 √n
94.973914611609
5 √n
38.201768742031
1 , 2 , 13 , 26 , 269 , 538 , 3497 , 6994 , 11633 , 23266 , 151229 , 302458 , 3129277 , 6258554 , 40680601 , 81361202
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81361201
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81361202 can be divided by 16 positive divisors.
The sum of these divisors (counting 81361202) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010111100100110010
3
Ternary
12200002120120212
4
Quaternary
10312113210302
5
Quinary
131312024302
6
Senary
12023504122
8
Octal
466274462
10
Decimal
81361202
12
Duodecimal
232b8042
16
Hexadecimal
4d97932
20
Vigesimal
158a302
36
Base36
1cfupe
md5
c610360e16c039e095919c1d54064018
sha1
7583090d3ab1bf9750ac26371f5d618aed13b57d
sha256
360e32890131615eda5556c4c2e85c426a68a41a50f97ab45f9a23a447e7cb57
sha512
40006e58384f6e3865408c5eaa5eba90da44c767968d1f3e8fea9b040811df3b1a3c45595472a87ec1665f8898cadcb8533239b8364f2557ccea905d4d9767e7
ripemd-160
b90a7c104fdb161ab136d739764e408de8eb8801
Diameter
162722404
Circumference
511207508.98087
Area
2.0796228701055E+16
Volume
2.2560082189129E+24
Surface area
8.3184914804219E+16
Circumference
511207508.98087
Perimeter
325444808
Area
6619645190884804
Diagonal
115062115.31938
Surface area
39717871145308824
Volume
5.3858228954391E+23
Space diagonal
140921735.62887
Perimeter
244083606
Area
2.8663904496729E+15
Altitude
70460867.814437
Surface area
2.8663904496729E+15
Volume
6.3472531527246E+22
Height
38354038.439792