81172007 is an odd 8-digits composite number following 81172006
and preceding 81172008 . In scientific notation, it is written as 8.1172007 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 69477912 positive integers (up to 81172007) that are relatively prime to 81172007.
81172007 has 8 divisors, whose sum is 92898816
The reverse of 81172007 is 70027118
Previous prime number is 743
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred seventy-two thousand seven
Scientific notation
8.1172007 × 10^7
Engineering notation
8.1172007 × 10^6
Prime Factorization
7 × 743 × 15607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81172007
Product of the distinct prime numbers
The prime factorization of 81172007 is 7 × 743 × 15607.
Since it has a total of 3 prime factors.
1 , 9 , 66 , 91 , 560 , 793 , 6648 , 2825 , 17538 , 32568 , 918996 , 584939 , 3312495 , 3318331 , 18208957 , 59452520 , 170476726 , 60752114 , 9867537132 , 7164054655
n×2
162344014
n×3
243516021
n×4
324688028
n×5
405860035
n÷2
40586003.5
n÷3
27057335.666667
n÷3
20293001.75
n÷5
16234401.4
n2
6588894720408049
n3
5.3483380836723E+23
n4
4.3413533636621E+31
n5
3.5239636562465E+39
2 √n
9009.5508767086
3 √n
432.98092248476
4 √n
94.91865399756
5 √n
38.183985534358
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
-81172006
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 81172007 can be divided by 8 positive divisors.
The sum of these divisors (counting 81172007) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101101001011000100111
3
Ternary
12122201222001122
4
Quaternary
10311221120213
5
Quinary
131240001012
6
Senary
12015444155
8
Octal
465513047
10
Decimal
81172007
12
Duodecimal
2322665b
16
Hexadecimal
4d69627
20
Vigesimal
1576a07
36
Base36
1cbspz
md5
695de8f477fa40ec179eab21d61bf4f1
sha1
ee74eb1fb5fea91c1400791e6cd6229a6e653edd
sha256
5ec0f0073a2bf4076823fbfcefcbe4bc6555b00912424ed8901c5dda01621496
sha512
3b7a1a02cbd69bcb297cc67b32d016f3c5e5429b6d0abffbb80ad20db48997b44ae3914c8753928647db0fab8ddaac136ab9e287de7c283a24511acbf71d30f7
ripemd-160
6761c0fbb39b31d9318efbecd384254140563615
Diameter
162344014
Circumference
510018761.73668
Area
2.069962324891E+16
Volume
2.2403066176772E+24
Surface area
8.2798492995642E+16
Circumference
510018761.73668
Perimeter
324688028
Area
6588894720408049
Diagonal
114794553.18444
Surface area
39533368322448294
Volume
5.3483380836723E+23
Space diagonal
140594040.27634
Perimeter
243516021
Area
2.8530751053673E+15
Altitude
70297020.138168
Surface area
2.8530751053673E+15
Volume
6.3030768784049E+22
Height
38264851.061481