81620007 is an odd 8-digits composite number following 81620006
and preceding 81620008 . In scientific notation, it is written as 8.1620007 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 44755200 positive integers (up to 81620007) that are relatively prime to 81620007.
81620007 has 32 divisors, whose sum is 129454080
The reverse of 81620007 is 70002618
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighty-one million six hundred twenty thousand seven
Scientific notation
8.1620007 × 10^7
Engineering notation
8.1620007 × 10^6
Prime Factorization
7 × 3 × 29 × 223 × 601
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81620007
Product of the distinct prime numbers
The prime factorization of 81620007 is 7 × 3 × 29 × 223 × 601.
Since it has a total of 5 prime factors.
3 , 5 , 44 , 82 , 525 , 848 , 9736 , 2029 , 60830 , 89775 , 103016 , 244719 , 3432929 , 5033533 , 31544993 , 56674235 , 775669232 , 610388893 , 2933710262 , 53958070
n×2
163240014
n×3
244860021
n×4
326480028
n×5
408100035
n÷2
40810003.5
n÷3
27206669
n÷3
20405001.75
n÷5
16324001.4
n2
6661825542680049
n3
5.4373824742632E+23
n4
4.4379919561104E+31
n5
3.6222893452368E+39
2 √n
9034.3791707012
3 √n
433.77602287765
4 √n
95.049351237666
5 √n
38.226041375028
1 , 3 , 7 , 21 , 29 , 87 , 203 , 223 , 601 , 609 , 669 , 1561 , 1803 , 4207 , 4683 , 6467 , 12621 , 17429 , 19401 , 45269 , 52287 , 122003 , 134023 , 135807 , 366009 , 402069 , 938161 , 2814483 , 3886667 , 11660001 , 27206669 , 81620007
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81620006
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81620007 can be divided by 32 positive divisors.
The sum of these divisors (counting 81620007) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111010110110000100111
3
Ternary
12200120201121020
4
Quaternary
10313112300213
5
Quinary
131343320012
6
Senary
12033222223
8
Octal
467266047
10
Decimal
81620007
12
Duodecimal
23401973
16
Hexadecimal
4dd6c27
20
Vigesimal
15a2a07
36
Base36
1cleef
md5
4a9b359004a0013df57ee63d40ee7cd2
sha1
b274adb28c9ec41ae5be8867687d612ef2e73ec7
sha256
e897e1b8e594a118215cda14d0316c19f3a110bcbdad55234369e535153d4055
sha512
f47ad94245cafb596f19c391293de701451caf3365cedf8d22747013aec606f17dd0ab1a64565b2339f21a9f0554b0f5e7540cc24dbedd4304f27406d85bb00e
ripemd-160
5b7ce0b6ed153e7e0a9de584bf4044e38fe8e0cd
Diameter
163240014
Circumference
512833628.75429
Area
2.092874218438E+16
Volume
2.2776054447871E+24
Surface area
8.3714968737522E+16
Circumference
512833628.75429
Perimeter
326480028
Area
6661825542680049
Diagonal
115428120.86039
Surface area
39970953256080294
Volume
5.4373824742632E+23
Space diagonal
141369999.03813
Perimeter
244860021
Area
2.8846550777705E+15
Altitude
70684999.519064
Surface area
2.8846550777705E+15
Volume
6.408016699094E+22
Height
38476040.286796