81572010 is an even 8-digits composite number following 81572009
and preceding 81572011 . In scientific notation, it is written as 8.1572010 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 20079168 positive integers (up to 81572010) that are relatively prime to 81572010.
81572010 has 16 divisors, whose sum is 165654720
The reverse of 81572010 is 01027518
Previous prime number is 65
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million five hundred seventy-two thousand ten
Scientific notation
8.1572010 × 10^7
Engineering notation
8.1572010 × 10^6
Prime Factorization
2 × 3 × 65 × 209159
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81572010
Product of the distinct prime numbers
The prime factorization of 81572010 is 2 × 3 × 65 × 209159.
Since it has a total of 4 prime factors.
4 , 7 , 56 , 44 , 231 , 474 , 2006 , 5261 , 75556 , 65455 , 523375 , 368502 , 9897004 , 4048646 , 42963117 , 3666289 , 321228806 , 497063481 , 2220476123 , 5215135993
n×2
163144020
n×3
244716030
n×4
326288040
n×5
407860050
n÷2
40786005
n÷3
27190670
n÷3
20393002.5
n÷5
16314402
n2
6653992815440100
n3
5.4277956848101E+23
n4
4.4275620387928E+31
n5
3.6116513490403E+39
2 √n
9031.72242709
3 √n
433.69097824641
4 √n
95.03537460909
5 √n
38.221544519178
1 , 2 , 3 , 6 , 65 , 130 , 195 , 390 , 209159 , 418318 , 627477 , 1254954 , 13595335 , 27190670 , 40786005 , 81572010
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
-81572009
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 81572010 can be divided by 16 positive divisors.
The sum of these divisors (counting 81572010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001011000010101010
3
Ternary
12200111021202120
4
Quaternary
10313023002222
5
Quinary
131340301020
6
Senary
12032212110
8
Octal
467130252
10
Decimal
81572010
12
Duodecimal
2339a036
16
Hexadecimal
4dcb0aa
20
Vigesimal
159ga0a
36
Base36
1ckdd6
md5
a72eaacc20c22f27052b3950cd2f1480
sha1
8d2869ce43a8957e2d7ab90404dff450ab156efc
sha256
1fe2ccba86596a3ff8a6ffff41e28aa572dbfab60364f4d79c8e9bb19c4f6042
sha512
9c12af627361376aa348eaaa91fc4d5c83ddabf6bf4420fbee3c2b3db8b3e10f11949eb48e14854df40c1f5274f5ab2786d03f5dea608d995a35471553c92526
ripemd-160
b6cb116be4a691e4111be2b0c4a4cdc2cbdd91f6
Diameter
163144020
Circumference
512532054.70911
Area
2.0904134946026E+16
Volume
2.2735897398114E+24
Surface area
8.3616539784104E+16
Circumference
512532054.70911
Perimeter
326288040
Area
6653992815440100
Diagonal
115360242.85203
Surface area
39923956892640600
Volume
5.4277956848101E+23
Space diagonal
141286865.79552
Perimeter
244716030
Area
2.8812634073851E+15
Altitude
70643432.897758
Surface area
2.8812634073851E+15
Volume
6.3967185593738E+22
Height
38453414.284011