121640561 is an odd 9-digits composite number following 121640560
and preceding 121640562 . In scientific notation, it is written as 1.21640561 × 10^8.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 104263332 positive integers (up to 121640561) that are relatively prime to 121640561.
121640561 has 4 divisors, whose sum is 139017792
The reverse of 121640561 is 165046121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 26
Digital Root 8
Name
one hundred twenty-one million six hundred forty thousand five hundred sixty-one
Scientific notation
1.21640561 × 10^8
Engineering notation
1.21640561 × 10^6
Prime Factorization
7 × 17377223
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121640561
Product of the distinct prime numbers
The prime factorization of 121640561 is 7 × 17377223.
Since it has a total of 2 prime factors.
8 , 3 , 43 , 84 , 88 , 17 , 8280 , 1719 , 23607 , 60919 , 760000 , 105891 , 4650734 , 764043 , 55138041 , 99687868 , 450771965 , 711406792 , 4865733766 , 9799319075
n×2
243281122
n×3
364921683
n×4
486562244
n×5
608202805
n÷2
60820280.5
n÷3
40546853.666667
n÷3
30410140.25
n÷5
24328112.2
n2
14796426080394721
n3
1.7998455692142E+24
n4
2.1893422475259E+32
n5
2.6631281921005E+40
2 √n
11029.077975969
3 √n
495.48001051649
4 √n
105.01941713783
5 √n
41.401462510443
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
-121640560
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 121640561 can be divided by 4 positive divisors.
The sum of these divisors (counting 121640561) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010000000001011001110001
3
Ternary
22110212222110222
4
Quaternary
13100001121301
5
Quinary
222114444221
6
Senary
20023102425
8
Octal
720013161
10
Decimal
121640561
12
Duodecimal
348a1a15
16
Hexadecimal
7401671
20
Vigesimal
1i05181
36
Base36
20f6gh
md5
c6b85442a102b7691734ca9bd0490d81
sha1
aa12764ad90c8aec20a2de8b1a0275292eaeb86a
sha256
37083ded75fce61fd589d28620a9c64bdd8cdf478ba92cb84d03b3142c716fdc
sha512
1306b78b459dad5a58bc3a02c0714bb1c59b78583cd773f2e732ef150c835fcd1c573108ce9cac60c699122b08bd0f58bf47b8d28643fade2138a331bcd5ac4a
ripemd-160
2a548985d371ef2e7914a4917cf940d655fe0d84
Diameter
243281122
Circumference
764290185.63228
Area
4.6484343473552E+16
Volume
7.5391754904528E+24
Surface area
1.8593737389421E+17
Circumference
764290185.63228
Perimeter
486562244
Area
14796426080394721
Diagonal
172025731.10087
Surface area
88778556482368326
Volume
1.7998455692142E+24
Space diagonal
210687631.91318
Perimeter
364921683
Area
6.4070404354202E+15
Altitude
105343815.95659
Surface area
6.4070404354202E+15
Volume
2.1211383451333E+23
Height
57341910.366957