68909521 is an odd 8-digits composite number following 68909520
and preceding 68909522 . In scientific notation, it is written as 6.8909521 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 66960432 positive integers (up to 68909521) that are relatively prime to 68909521.
68909521 has 8 divisors, whose sum is 70875200
The reverse of 68909521 is 12590986
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-eight million nine hundred nine thousand five hundred twenty-one
Scientific notation
6.8909521 × 10^7
Engineering notation
6.8909521 × 10^6
Prime Factorization
43 × 199 × 8053
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68909521
Product of the distinct prime numbers
The prime factorization of 68909521 is 43 × 199 × 8053.
Since it has a total of 3 prime factors.
2 , 1 , 55 , 66 , 708 , 674 , 5446 , 8287 , 95683 , 58622 , 784951 , 11228 , 1479112 , 6529213 , 94741289 , 10378854 , 343342093 , 396180935 , 7038520693 , 5374892377
n×2
137819042
n×3
206728563
n×4
275638084
n×5
344547605
n÷2
34454760.5
n÷3
22969840.333333
n÷3
17227380.25
n÷5
13781904.2
n2
4748522084449441
n3
3.2721838229733E+23
n4
2.2548461986504E+31
n5
1.5538037147767E+39
2 √n
8301.1758805605
3 √n
409.97723649148
4 √n
91.110789045867
5 √n
36.953522797963
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
-68909520
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 68909521 can be divided by 8 positive divisors.
The sum of these divisors (counting 68909521) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110110111100111010001
3
Ternary
11210122222002111
4
Quaternary
10012313213101
5
Quinary
120120101041
6
Senary
10500545321
8
Octal
406674721
10
Decimal
68909521
12
Duodecimal
1b0b2241
16
Hexadecimal
41b79d1
20
Vigesimal
11addg1
36
Base36
150yxd
md5
d59fee5ce815a763965363f55ba20f83
sha1
14369f01bda1865c80800be153f20659456fff57
sha256
f307bded513d0238981b9c157b657302e9a502e5b4edf92de3e31e2d4c01f392
sha512
f52cb93d58b4989f28114cdf180e087af6cc6e0b000ec3bcc564cdd4126f4eb3967880d18866333b12a21a3e8b779ae736eab8064407ba32cff2fc6c382f0bf0
ripemd-160
836bf7faa586077b2be15cdb0124d0e098d8c0a5
Diameter
137819042
Circumference
432971289.87198
Area
1.4917922095915E+16
Volume
1.3706491545931E+24
Surface area
5.9671688383661E+16
Circumference
432971289.87198
Perimeter
275638084
Area
4748522084449441
Diagonal
97452779.174834
Surface area
28491132506696646
Volume
3.2721838229733E+23
Space diagonal
119354791.49723
Perimeter
206728563
Area
2.0561703777823E+15
Altitude
59677395.748617
Surface area
2.0561703777823E+15
Volume
3.8563056175223E+22
Height
32484259.724945