121545947 is an odd 9-digits composite number following 121545946
and preceding 121545948 . In scientific notation, it is written as 1.21545947 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 114773760 positive integers (up to 121545947) that are relatively prime to 121545947.
121545947 has 16 divisors, whose sum is 128550912
The reverse of 121545947 is 749545121
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred twenty-one million five hundred forty-five thousand nine hundred forty-seven
Scientific notation
1.21545947 × 10^8
Engineering notation
1.21545947 × 10^6
Prime Factorization
31 × 487 × 83 × 97
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121545947
Product of the distinct prime numbers
The prime factorization of 121545947 is 31 × 487 × 83 × 97.
Since it has a total of 4 prime factors.
5 , 6 , 20 , 84 , 809 , 911 , 4758 , 3631 , 5214 , 28243 , 898528 , 662384 , 9123451 , 5191410 , 76220986 , 75759604 , 163992950 , 426367196 , 2167842781 , 5535803802
n×2
243091894
n×3
364637841
n×4
486183788
n×5
607729735
n÷2
60772973.5
n÷3
40515315.666667
n÷3
30386486.75
n÷5
24309189.4
n2
14773417232126809
n3
1.795648987905E+24
n4
2.182538567145E+32
n5
2.6527871700766E+40
2 √n
11024.787843764
3 √n
495.35151306715
4 √n
104.99898972735
5 √n
41.395019959961
1 , 31 , 83 , 97 , 487 , 2573 , 3007 , 8051 , 15097 , 40421 , 47239 , 249581 , 1253051 , 1464409 , 3920837 , 121545947
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121545946
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121545947 can be divided by 16 positive divisors.
The sum of these divisors (counting 121545947) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111001111101010010011011011
3
Ternary
22110201011200202
4
Quaternary
13033222103123
5
Quinary
222103432242
6
Senary
20021052415
8
Octal
717522333
10
Decimal
121545947
12
Duodecimal
3485710b
16
Hexadecimal
73ea4db
20
Vigesimal
1hjd4h7
36
Base36
20d5gb
md5
37bb81bf5ddda9edfdbb507a3b35e6f0
sha1
000fe8ab6e363a8821350991cda41817375e56dc
sha256
1571a0a4e1da6256271e7b26c44a4e678c3dad7efbc2d65de7c275c79774fc3c
sha512
5b7c09457b78f637070e0abf326ba0624b690807b9a23fe71a533cc9d6d09310e4e5f6a35b8fbee068c5084d93a80376c6c0c226d2073ac10cb17ed4fb32105f
ripemd-160
0d43a261d6d1ef63511176179f00782714d677b4
Diameter
243091894
Circumference
763695708.33763
Area
4.6412059044866E+16
Volume
7.5215968917709E+24
Surface area
1.8564823617947E+17
Circumference
763695708.33763
Perimeter
486183788
Area
14773417232126809
Diagonal
171891926.69888
Surface area
88640503392760854
Volume
1.795648987905E+24
Space diagonal
210523755.65807
Perimeter
364637841
Area
6.3970773118643E+15
Altitude
105261877.82904
Surface area
6.3970773118643E+15
Volume
2.1161926266306E+23
Height
57297308.899627