121946989 is an odd 9-digits composite number following 121946988
and preceding 121946990 . In scientific notation, it is written as 1.21946989 × 10^8.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 116460960 positive integers (up to 121946989) that are relatively prime to 121946989.
121946989 has 8 divisors, whose sum is 127449792
The reverse of 121946989 is 989649121
Previous prime number is 691
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred twenty-one million nine hundred forty-six thousand nine hundred eighty-nine
Scientific notation
1.21946989 × 10^8
Engineering notation
1.21946989 × 10^6
Prime Factorization
23 × 691 × 7673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121946989
Product of the distinct prime numbers
The prime factorization of 121946989 is 23 × 691 × 7673.
Since it has a total of 3 prime factors.
7 , 7 , 33 , 19 , 178 , 427 , 9778 , 5067 , 48342 , 18268 , 57604 , 280613 , 9642644 , 3393900 , 39233493 , 49837929 , 991558855 , 464569650 , 3661154674 , 2315081384
n×2
243893978
n×3
365840967
n×4
487787956
n×5
609734945
n÷2
60973494.5
n÷3
40648996.333333
n÷3
30486747.25
n÷5
24389397.8
n2
14871068126166121
n3
1.8134819811998E+24
n4
2.2114866721307E+32
n5
2.6968414087997E+40
2 √n
11042.961061237
3 √n
495.8957206311
4 √n
105.08549405716
5 √n
41.422300630408
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
-121946988
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 121946989 can be divided by 8 positive divisors.
The sum of these divisors (counting 121946989) is 1, the average is 0.125.
Base
System
Value
2
Binary
111010001001100001101101101
3
Ternary
22111110112211011
4
Quaternary
13101030031231
5
Quinary
222204300424
6
Senary
20033425221
8
Octal
721141555
10
Decimal
121946989
12
Duodecimal
34a0b211
16
Hexadecimal
744c36d
20
Vigesimal
1i23799
36
Base36
20lqwd
md5
b9db89a8a7f7291dc0d9352dfc75e1cc
sha1
0dfff837f3b404379edcf0e39a62b38e3b8d04cd
sha256
28cd7c3865213c34152c14feea51b06d2ed32310deb3b913d475b57bd32c5ef7
sha512
1ccde6d5bc6527b084453a6144a62103a0303b6651e73634e7ec44374bda4af06f05d0c1e94636c71a7bbea4ebc3d7abba5a0d3aa78b4150931d4aa26dbac775
ripemd-160
84d3318fddd06ce44edd242f3ef11a6fc870810b
Diameter
243893978
Circumference
766215529.53959
Area
4.6718838376197E+16
Volume
7.5962955594065E+24
Surface area
1.8687535350479E+17
Circumference
766215529.53959
Perimeter
487787956
Area
14871068126166121
Diagonal
172459085.73436
Surface area
89226408756996726
Volume
1.8134819811998E+24
Space diagonal
211218380.77804
Perimeter
365840967
Area
6.4393613893345E+15
Altitude
105609190.38902
Surface area
6.4393613893345E+15
Volume
2.1372090107767E+23
Height
57486361.911454