81121017 is an odd 8-digits composite number following 81121016
and preceding 81121018 . In scientific notation, it is written as 8.1121017 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 52336080 positive integers (up to 81121017) that are relatively prime to 81121017.
81121017 has 4 divisors, whose sum is 81993380
The reverse of 81121017 is 71012118
Previous prime number is 93
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million one hundred twenty-one thousand seventeen
Scientific notation
8.1121017 × 10^7
Engineering notation
8.1121017 × 10^6
Prime Factorization
93 × 872269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81121017
Product of the distinct prime numbers
The prime factorization of 81121017 is 93 × 872269.
Since it has a total of 2 prime factors.
3 , 7 , 58 , 94 , 465 , 608 , 3113 , 1009 , 3151 , 95521 , 406065 , 105084 , 8320059 , 5480059 , 19492108 , 32854112 , 601103575 , 574086221 , 2710870275 , 607183302
n×2
162242034
n×3
243363051
n×4
324484068
n×5
405605085
n÷2
40560508.5
n÷3
27040339
n÷3
20280254.25
n÷5
16224203.4
n2
6580619399114289
n3
5.3382653814608E+23
n4
4.3304551675999E+31
n5
3.5129092726861E+39
2 √n
9006.7206573758
3 √n
432.89024129825
4 √n
94.903744169426
5 √n
38.179187104703
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81121016
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81121017 can be divided by 4 positive divisors.
The sum of these divisors (counting 81121017) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011100111011111001
3
Ternary
12122122101010010
4
Quaternary
10311130323321
5
Quinary
131231333032
6
Senary
12014412133
8
Octal
465347371
10
Decimal
81121017
12
Duodecimal
23201049
16
Hexadecimal
4d5cef9
20
Vigesimal
15702ah
36
Base36
1capdl
md5
f803910dd73867de84ad58dd91f067b9
sha1
48995b0196e410371b37decf2c9b3d5f1ea29a7d
sha256
2e8ea8033cf407960a90c0c0caeb760ebe67a68a473ede9d63306f746798bf26
sha512
f2aa2b15fd6e04fcd28495009327706e8fde1f1caa59c25a4e5fecc2f0c648aa95a649eee4a057e06e10af729eb358d215a6d1d69241eb6fea08e88fa91ae32d
ripemd-160
3c6f3ea45ab589e4ea32158741b88badaad20a80
Diameter
162242034
Circumference
509698382.11787
Area
2.0673625560328E+16
Volume
2.2360873740413E+24
Surface area
8.2694502241312E+16
Circumference
509698382.11787
Perimeter
324484068
Area
6580619399114289
Diagonal
114722442.4349
Surface area
39483716394685734
Volume
5.3382653814608E+23
Space diagonal
140505723.00566
Perimeter
243363051
Area
2.8494917861348E+15
Altitude
70252861.502829
Surface area
2.8494917861348E+15
Volume
6.2912060850072E+22
Height
38240814.144966