121381618 is an even 9-digits composite number following 121381617
and preceding 121381619 . In scientific notation, it is written as 1.21381618 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 60675216 positive integers (up to 121381618) that are relatively prime to 121381618.
121381618 has 8 divisors, whose sum is 182119212
The reverse of 121381618 is 816183121
Previous prime number is 8117
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-one million three hundred eighty-one thousand six hundred eighteen
Scientific notation
1.21381618 × 10^8
Engineering notation
1.21381618 × 10^6
Prime Factorization
2 × 8117 × 7477
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
121381618
Product of the distinct prime numbers
The prime factorization of 121381618 is 2 × 8117 × 7477.
Since it has a total of 3 prime factors.
5 , 4 , 23 , 73 , 174 , 287 , 3501 , 3946 , 45562 , 35578 , 197153 , 419798 , 3991151 , 1500980 , 95214136 , 88731522 , 194185875 , 220874184 , 1519076522 , 3689109644
n×2
242763236
n×3
364144854
n×4
485526472
n×5
606908090
n÷2
60690809
n÷3
40460539.333333
n÷3
30345404.5
n÷5
24276323.6
n2
14733497188297924
n3
1.7883757275141E+24
n4
2.1707593939758E+32
n5
2.6349028752949E+40
2 √n
11017.33261729
3 √n
495.12817549351
4 √n
104.96348230356
5 √n
41.383820764753
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
-121381617
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 121381618 can be divided by 8 positive divisors.
The sum of these divisors (counting 121381618) is 1, the average is 0.125.
Base
System
Value
2
Binary
111001111000010001011110010
3
Ternary
22110101211021111
4
Quaternary
13033002023302
5
Quinary
222033202433
6
Senary
20013343534
8
Octal
717021362
10
Decimal
121381618
12
Duodecimal
34797baa
16
Hexadecimal
73c22f2
20
Vigesimal
1hice0i
36
Base36
209mnm
md5
b3cc301a4ae553f639852c7c59d5c77c
sha1
7e7c41dd6c644e4acd552f2308a21ceac9e08200
sha256
8bf7d98e7ad185b10f7c66108089333108b37d6d0bebd9e4c7387be4b1fdf56b
sha512
c6e8e9336aa0b08cd3bdbaac77fe1751f5251a071f8e1115e12ca166a1ff4cfca6688e1644538e2ae2811497b11eabdcf1e9203abda4b73a0796005c76a0d079
ripemd-160
c60ea281b5431546af9b09ad6e6b258a2e6595d7
Diameter
242763236
Circumference
762663198.77929
Area
4.6286646528443E+16
Volume
7.4911307298886E+24
Surface area
1.8514658611377E+17
Circumference
762663198.77929
Perimeter
485526472
Area
14733497188297924
Diagonal
171659530.39839
Surface area
88400983129787544
Volume
1.7883757275141E+24
Space diagonal
210239129.48092
Perimeter
364144854
Area
6.3797914258263E+15
Altitude
105119564.74046
Surface area
6.3797914258263E+15
Volume
2.1076210070577E+23
Height
57219843.46613