68540921 is an odd 8-digits prime number following 68540920
and preceding 68540922 . In scientific notation, it is written as 6.8540921 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 68540920 positive integers (up to 68540921) that are relatively prime to 68540921.
68540921 has 2 divisors, whose sum is 68540922
The reverse of 68540921 is 12904586
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-eight million five hundred forty thousand nine hundred twenty-one
Scientific notation
6.8540921 × 10^7
Engineering notation
6.8540921 × 10^6
Prime Factorization
68540921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
68540921
Product of the distinct prime numbers
The prime factorization of 68540921 is 68540921.
Since it has a total of 1 prime factors.
5 , 4 , 11 , 38 , 9 , 449 , 7655 , 9769 , 76446 , 49508 , 376822 , 637221 , 9154229 , 3180050 , 25088228 , 59537044 , 946003589 , 802042995 , 7351407535 , 9323118683
n×2
137081842
n×3
205622763
n×4
274163684
n×5
342704605
n÷2
34270460.5
n÷3
22846973.666667
n÷3
17135230.25
n÷5
13708184.2
n2
4697857851528241
n3
3.2199550387083E+23
n4
2.2069868393166E+31
n5
1.5126891060164E+39
2 √n
8278.9444375476
3 √n
409.24493392227
4 √n
90.988704999838
5 √n
36.913904742097
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
68540922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
34270461
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
8278.9444979418
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999708204
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68540921 can be divided by 2 positive divisors.
The sum of these divisors (counting 68540921) is 68540922, the average is 34270461.
Base
System
Value
2
Binary
100000101011101100111111001
3
Ternary
11202222020110122
4
Quaternary
10011131213321
5
Quinary
120021302141
6
Senary
10445023025
8
Octal
405354771
10
Decimal
68540921
12
Duodecimal
1ab54a75
16
Hexadecimal
415d9f9
20
Vigesimal
1187c61
36
Base36
14t2ih
md5
fb02cc18e431872f380498b78e1cde47
sha1
77a0281da6f1c54a58b3732fce8f7baac5322d1c
sha256
b57985aaa118d38563d8af98694bfa51a32dad895a59086a7602f80da4c74ca5
sha512
3ebe9401965bd88473338a08e092516c75b2f25ce1159bc06611d3eb86296835ab0b954c13523aa0bdd98469dbde74c5700a1f1b10277f6db52736599868f298
ripemd-160
9ab6dd3a86c123e05bf316543d0db808d586c6de
Diameter
137081842
Circumference
430655307.76776
Area
1.475875571397E+16
Volume
1.3487716125994E+24
Surface area
5.9035022855881E+16
Circumference
430655307.76776
Perimeter
274163684
Area
4697857851528241
Diagonal
96931500.055743
Surface area
28187147109169446
Volume
3.2199550387083E+23
Space diagonal
118716357.56956
Perimeter
205622763
Area
2.0342321213958E+15
Altitude
59358178.784782
Surface area
2.0342321213958E+15
Volume
3.7947534049773E+22
Height
32310500.018581