121661512 is an even 9-digits composite number following 121661511
and preceding 121661513 . In scientific notation, it is written as 1.21661512 × 10^8.
The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors.
There are 52140480 positive integers (up to 121661512) that are relatively prime to 121661512.
121661512 has 16 divisors, whose sum is 232771500
The reverse of 121661512 is 215166121
Previous prime number is 49
Is Prime? no
Number parity even
Number length 9
Sum of Digits 25
Digital Root 7
Name
one hundred twenty-one million six hundred sixty-one thousand five hundred twelve
Scientific notation
1.21661512 × 10^8
Engineering notation
1.21661512 × 10^6
Prime Factorization
2 × 2 × 2 × 49 × 310361
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
30415378
Product of the distinct prime numbers
The prime factorization of 121661512 is 2 × 2 × 2 × 49 × 310361.
Since it has a total of 5 prime factors.
10 , 4 , 66 , 16 , 256 , 141 , 2124 , 6856 , 97641 , 89094 , 650699 , 663275 , 5886171 , 1299393 , 30710577 , 46317034 , 798325677 , 47460369 , 5587712408 , 9267297223
n×2
243323024
n×3
364984536
n×4
486646048
n×5
608307560
n÷2
60830756
n÷3
40553837.333333
n÷3
30415378
n÷5
24332302.4
n2
14801523502126144
n3
1.8007757291722E+24
n4
2.1908509798399E+32
n5
2.6654224277401E+40
2 √n
11030.027742486
3 √n
495.50845553978
4 √n
105.02393890197
5 √n
41.402888584576
1 , 2 , 4 , 8 , 49 , 98 , 196 , 392 , 310361 , 620722 , 1241444 , 2482888 , 15207689 , 30415378 , 60830756 , 121661512
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
-121661511
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 121661512 can be divided by 16 positive divisors.
The sum of these divisors (counting 121661512) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010000000110100001001000
3
Ternary
22110221001012221
4
Quaternary
13100012201020
5
Quinary
222121132022
6
Senary
20023343424
8
Octal
720064110
10
Decimal
121661512
12
Duodecimal
348b1b74
16
Hexadecimal
7406848
20
Vigesimal
1i07dfc
36
Base36
20fmmg
md5
85bc60948a37f1867dc737f6e60f7a97
sha1
0b53f22f22c93061ba32a06a1251b663ceb0b8a5
sha256
d2029366eee714fbd04dd2ed0b976ae211ddbb4698f24cb00dc3976b1f216664
sha512
864e5d9b372c1fe7ce9c41dbde96195ae31b6463b09a7c0b4a9adea9428aa3e69fa3f75413380726828e83b35a3d85689946c8e9c6c41753a72c3833c5223674
ripemd-160
b522a3c6587d94f28cc882f1922185c5b36f9c4c
Diameter
243323024
Circumference
764421824.64765
Area
4.6500357496216E+16
Volume
7.5430717353736E+24
Surface area
1.8600142998486E+17
Circumference
764421824.64765
Perimeter
486646048
Area
14801523502126144
Diagonal
172055360.28922
Surface area
88809141012756864
Volume
1.8007757291722E+24
Space diagonal
210723920.10965
Perimeter
364984536
Area
6.4092476837768E+15
Altitude
105361960.05483
Surface area
6.4092476837768E+15
Volume
2.1222345491564E+23
Height
57351786.763072