1216251421 is an odd 10-digits composite number following 1216251420
and preceding 1216251422 . In scientific notation, it is written as 1.216251421 × 10^9.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 947728320 positive integers (up to 1216251421) that are relatively prime to 1216251421.
1216251421 has 8 divisors, whose sum is 1516365504
The reverse of 1216251421 is 1241526121
Previous prime number is 11
Is Prime? no Number parity odd Number length 10 Sum of Digits 25 Digital Root 7
Name
one billion two hundred sixteen million two hundred fifty-one thousand four hundred twenty-one
Scientific notation
1.216251421 × 10^9
Engineering notation
1.216251421 × 10^9
Prime Factorization
7 × 11 × 15795473
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1216251421 Product of the distinct prime numbers
The prime factorization of 1216251421 is 7 × 11 × 15795473.
Since it has a total of 3 prime factors.
10 , 10 , 98 , 20 , 39 , 470 , 8718 , 7263 , 64238 , 92656 , 922553 , 193104 , 3538126 , 1986864 , 82354525 , 3923205 , 380773344 , 127384196 , 7063633365 , 1455005933
n×2
2432502842
n×3
3648754263
n×4
4865005684
n×5
6081257105
n÷2
608125710.5
n÷3
405417140.33333
n÷3
304062855.25
n÷5
243250284.2
n2
1479267519084519241
n3
1.7991612221257E+27
n4
2.1882323930185E+36
n5
2.6614407574869E+45
2 √n34874.796357828
3 √n1067.4342171618
4 √n186.74794873794
5 √n65.615232514617
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
-1216251420 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 1216251421 can be divided by 8 positive divisors.
The sum of these divisors (counting 1216251421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011111101000011000011101
3
Ternary
10010202120222021221
4
Quaternary
1020133220120131
5
Quinary
4442330021141
6
Senary
320404253341
8
Octal
11037503035
10
Decimal
1216251421
12
Duodecimal
29b3a1251
16
Hexadecimal
487e861d
20
Vigesimal
j01b8b1
36
Base36
k44hlp
md5
7c8379d3559253c90b34b146d4f4f467
sha1
79a1e45bf035fad5fb0351ee4a04a8e081c1b550
sha256
aa4b4c48e3b7205662c8cbba6bc19c8072e5c0b29bbe7833729db73ca81ae64b
sha512
5664a7123ebf90287bd0350750210ab85585e1b1188a2755acb57cdf26d493470cb19510005b2d0f6c93d22f416d2a4cf838353e2178df744cbb4bd29ee35c11
ripemd-160
0716685060286be986e211ae6ddc95b5928d8f61
Diameter
2432502842
Circumference
7641933058.2635
Area
4.6472559706499E+18
Volume
7.5363089040716E+27
Surface area
1.85890238826E+19
Circumference
7641933058.2635
Perimeter
4865005684
Area
1479267519084519241
Diagonal
1720039254.8337
Surface area
8875605114507115446
Volume
1.7991612221257E+27
Space diagonal
2106609255.9498
Perimeter
3648754263
Area
6.4054162526019E+17
Altitude
1053304627.9749
Surface area
6.4054162526019E+17
Volume
2.1203318343549E+26
Height
573346418.27792