1221421 is an odd 7-digits prime number following 1221420
and preceding 1221422 . In scientific notation, it is written as 1.221421 × 10^6.
The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors.
There are 1221420 positive integers (up to 1221421) that are relatively prime to 1221421.
1221421 has 2 divisors, whose sum is 1221422
The reverse of 1221421 is 1241221
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 13
Digital Root 4
Name
one million two hundred twenty-one thousand four hundred twenty-one
Scientific notation
1.221421 × 10^6
Engineering notation
1.221421 × 10^6
Prime Factorization
1221421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1221421
Product of the distinct prime numbers
The prime factorization of 1221421 is 1221421.
Since it has a total of 1 prime factors.
6 , 1 , 64 , 25 , 432 , 161 , 1070 , 9849 , 75040 , 15204 , 792992 , 169822 , 8506690 , 2460964 , 53274349 , 98696719 , 809531399 , 971293300 , 9626735353 , 8796749080
n×2
2442842
n×3
3664263
n×4
4885684
n×5
6107105
n÷2
610710.5
n÷3
407140.33333333
n÷3
305355.25
n÷5
244284.2
n2
1491869259241
n3
1822200442491401461
n4
2.2256738866683E+24
n5
2.7184848243283E+30
2 √n
1105.1791709945
3 √n
106.89444273113
4 √n
33.244235154301
5 √n
16.495788379568
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1221422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
610711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1105.1796234097
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999983625643
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1221421 can be divided by 2 positive divisors.
The sum of these divisors (counting 1221421) is 1221422, the average is 610711.
Base
System
Value
2
Binary
100101010001100101101
3
Ternary
2022001110211
4
Quaternary
10222030231
5
Quinary
303041141
6
Senary
42102421
8
Octal
4521455
10
Decimal
1221421
12
Duodecimal
4aaa11
16
Hexadecimal
12a32d
20
Vigesimal
7cdb1
36
Base36
q6gd
md5
5578cb9b62894cf16b21065eed6ed497
sha1
e37acc895858c5dd3460acac1bd8ce0af1c14b9e
sha256
b057ec6fd1ee78bed5c07ceb521ac9154364609a9bf96f83a3342dbc6dd2bd70
sha512
6f12b2d21f2fb81b87ec53ed7b879fe6e1437ce7e0367ef4feac01001e707bff3714f218fb4996fb5a92cba4cfdc4dfba9215a2befb1728f76dbca9599d06b2d
ripemd-160
0164bfea608a8fdaf80619ed254e3403a149a3a2
Diameter
2442842
Circumference
7674414.4810806
Area
4686845504948
Volume
7.6328153646654E+18
Surface area
18747382019792
Circumference
7674414.4810806
Perimeter
4885684
Area
1491869259241
Diagonal
1727350.1435673
Surface area
8951215555446
Volume
1822200442491401461
Space diagonal
2115563.2294316
Perimeter
3664263
Area
645998338813.89
Altitude
1057781.6147158
Surface area
645998338813.89
Volume
2.1474838159447E+17
Height
575783.3811891