91997921 is an odd 8-digits composite number following 91997920
and preceding 91997922 . In scientific notation, it is written as 9.1997921 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 91913412 positive integers (up to 91997921) that are relatively prime to 91997921.
91997921 has 4 divisors, whose sum is 92082432
The reverse of 91997921 is 12979919
Previous prime number is 1103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
ninety-one million nine hundred ninety-seven thousand nine hundred twenty-one
Scientific notation
9.1997921 × 10^7
Engineering notation
9.1997921 × 10^6
Prime Factorization
1103 × 83407
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
91997921
Product of the distinct prime numbers
The prime factorization of 91997921 is 1103 × 83407.
Since it has a total of 2 prime factors.
3 , 9 , 51 , 69 , 560 , 686 , 4232 , 3672 , 43328 , 18583 , 878846 , 904893 , 3675278 , 1196772 , 96311630 , 76738572 , 44846751 , 930484780 , 1755468097 , 673796984
n×2
183995842
n×3
275993763
n×4
367991684
n×5
459989605
n÷2
45998960.5
n÷3
30665973.666667
n÷3
22999480.25
n÷5
18399584.2
n2
8463617468322241
n3
7.7863521122493E+23
n4
7.1632820650089E+31
n5
6.5900705751741E+39
2 √n
9591.5546706465
3 √n
451.43234303298
4 √n
97.93648283784
5 √n
39.152148804744
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
-91997920
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 91997921 can be divided by 4 positive divisors.
The sum of these divisors (counting 91997921) is 1, the average is 0.25.
Base
System
Value
2
Binary
101011110111100011011100001
3
Ternary
20102002222102102
4
Quaternary
11132330123201
5
Quinary
142022413141
6
Senary
13043500145
8
Octal
536743341
10
Decimal
91997921
12
Duodecimal
26987655
16
Hexadecimal
57bc6e1
20
Vigesimal
18ejeg1
36
Base36
1iru1t
md5
bfb8da580b8f55930f0c78c85e11d5c2
sha1
b00f45a1b253ef77df3eab7f57c1d37c2095556c
sha256
5a6aaa670e4259b5286a8be59054af7884344b45f849fbe4b9efbe88c7df3533
sha512
3f3510ab3321d6fdbe605f9281dd9a6fbe9fd37ed6ad67189df3843adc445ac2edb3d5c98231a6fc8a20724cdd1b49f5ff029824e16b927b70a4b2178baee7f7
ripemd-160
baa131e7ba7235b6203566e4a08ad41a1890a901
Diameter
183995842
Circumference
578039985.51827
Area
2.6589238461275E+16
Volume
3.2615395458808E+24
Surface area
1.063569538451E+17
Circumference
578039985.51827
Perimeter
367991684
Area
8463617468322241
Diagonal
130104707.58833
Surface area
50781704809933446
Volume
7.7863521122493E+23
Space diagonal
159345073.36271
Perimeter
275993763
Area
3.6648538677404E+15
Altitude
79672536.681354
Surface area
3.6648538677404E+15
Volume
9.1763039654628E+22
Height
43368235.862776