121998745 is an odd 9-digits composite number following 121998744
and preceding 121998746 . In scientific notation, it is written as 1.21998745 × 10^8.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 88345600 positive integers (up to 121998745) that are relatively prime to 121998745.
121998745 has 16 divisors, whose sum is 160392960
The reverse of 121998745 is 547899121
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 46
Digital Root 1
Name
one hundred twenty-one million nine hundred ninety-eight thousand seven hundred forty-five
Scientific notation
1.21998745 × 10^8
Engineering notation
1.21998745 × 10^6
Prime Factorization
5 × 11 × 239 × 9281
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121998745
Product of the distinct prime numbers
The prime factorization of 121998745 is 5 × 11 × 239 × 9281.
Since it has a total of 4 prime factors.
2 , 10 , 69 , 56 , 315 , 259 , 9293 , 3969 , 40876 , 15776 , 11047 , 442371 , 6332149 , 4595802 , 55319158 , 56307968 , 181399936 , 812959519 , 2748727930 , 6462895369
n×2
243997490
n×3
365996235
n×4
487994980
n×5
609993725
n÷2
60999372.5
n÷3
40666248.333333
n÷3
30499686.25
n÷5
24399749
n2
14883693781575025
n3
1.8157919623165E+24
n4
2.215243405837E+32
n5
2.7025691538163E+40
2 √n
11045.304205861
3 √n
495.96586572458
4 √n
105.09664221972
5 √n
41.425816073879
1 , 5 , 11 , 55 , 239 , 1195 , 2629 , 9281 , 13145 , 46405 , 102091 , 510455 , 2218159 , 11090795 , 24399749 , 121998745
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
-121998744
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 121998745 can be divided by 16 positive divisors.
The sum of these divisors (counting 121998745) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010001011000110110011001
3
Ternary
22111120011211001
4
Quaternary
13101120312121
5
Quinary
222212424440
6
Senary
20034505001
8
Octal
721306631
10
Decimal
121998745
12
Duodecimal
34a35161
16
Hexadecimal
7458d99
20
Vigesimal
1i29gh5
36
Base36
20muu1
md5
1eb0a065e4f170eb1357c8d9cea0f3dd
sha1
e27121c324a03830f7f78afda2392e99a3621bca
sha256
eb7779376f957ee3b350659a2ed18c7fbea1b5c3313909493fa85099d19a59ed
sha512
fa176924606a4a1e4e9e5de994915ad89a3628aec22793d8bd3ec9e53c6ff0287f45a53283f4777cbf1dff0ff675f82ac51e640ee142c59a8e84d61a40a8f14b
ripemd-160
43764073c315cfea0945469083f37537203fddbf
Diameter
243997490
Circumference
766540722.07835
Area
4.6758503042476E+16
Volume
7.605971585681E+24
Surface area
1.870340121699E+17
Circumference
766540722.07835
Perimeter
487994980
Area
14883693781575025
Diagonal
172532279.7715
Surface area
89302162689450150
Volume
1.8157919623165E+24
Space diagonal
211308024.79964
Perimeter
365996235
Area
6.4448284584962E+15
Altitude
105654012.39982
Surface area
6.4448284584962E+15
Volume
2.13993134963E+23
Height
57510759.923832