121649561 is an odd 9-digits composite number following 121649560
and preceding 121649562 . In scientific notation, it is written as 1.21649561 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 108430080 positive integers (up to 121649561) that are relatively prime to 121649561.
121649561 has 16 divisors, whose sum is 135328320
The reverse of 121649561 is 165946121
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
one hundred twenty-one million six hundred forty-nine thousand five hundred sixty-one
Scientific notation
1.21649561 × 10^8
Engineering notation
1.21649561 × 10^6
Prime Factorization
11 × 89 × 137 × 907
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121649561
Product of the distinct prime numbers
The prime factorization of 121649561 is 11 × 89 × 137 × 907.
Since it has a total of 4 prime factors.
9 , 10 , 60 , 50 , 168 , 92 , 5016 , 9938 , 57057 , 291 , 86886 , 742437 , 4258253 , 2130064 , 75463518 , 60068191 , 447346456 , 850197948 , 823274396 , 5037524239
n×2
243299122
n×3
364948683
n×4
486598244
n×5
608247805
n÷2
60824780.5
n÷3
40549853.666667
n÷3
30412390.25
n÷5
24329912.2
n2
14798615691492721
n3
1.8002451022778E+24
n4
2.1899902638449E+32
n5
2.6641135419101E+40
2 √n
11029.48598077
3 √n
495.49223015245
4 √n
105.02135964065
5 √n
41.402075138554
1 , 11 , 89 , 137 , 907 , 979 , 1507 , 9977 , 12193 , 80723 , 124259 , 134123 , 887953 , 1366849 , 11059051 , 121649561
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
-121649560
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 121649561 can be divided by 16 positive divisors.
The sum of these divisors (counting 121649561) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010000000011100110011001
3
Ternary
22110220102211022
4
Quaternary
13100003212121
5
Quinary
222120241221
6
Senary
20023212225
8
Octal
720034631
10
Decimal
121649561
12
Duodecimal
348a7075
16
Hexadecimal
7403999
20
Vigesimal
1i063i1
36
Base36
20fdeh
md5
4e2000000c468612daf127026e990404
sha1
389c6930157c8d19b6b99793a3336fca6147905b
sha256
8364ead43a3c358e9354dc566dc86b9e741e318e1df857e84845b3cb5d977047
sha512
22c0263b5e7b762f5221c025b9083554116be48de6721393fce01c5f0e52b59489ef6de854cbb290e48a0d95c750fb4db2f5475bdcfd7b7c2d0a913015364927
ripemd-160
7c20f7357e65e99538f2f5aab68fcb3f5d8b11a5
Diameter
243299122
Circumference
764346734.30005
Area
4.6491222339692E+16
Volume
7.5408490506359E+24
Surface area
1.8596488935877E+17
Circumference
764346734.30005
Perimeter
486598244
Area
14798615691492721
Diagonal
172038459.02293
Surface area
88791694148956326
Volume
1.8002451022778E+24
Space diagonal
210703220.37045
Perimeter
364948683
Area
6.4079885648379E+15
Altitude
105351610.18522
Surface area
6.4079885648379E+15
Volume
2.1216091993642E+23
Height
57346153.007644