1221489 is an odd 7-digits composite number following 1221488
and preceding 1221490 . In scientific notation, it is written as 1.221489 × 10^6.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 814320 positive integers (up to 1221489) that are relatively prime to 1221489.
1221489 has 4 divisors, whose sum is 1357220
The reverse of 1221489 is 9841221
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 27
Digital Root 9
Name
one million two hundred twenty-one thousand four hundred eighty-nine
Scientific notation
1.221489 × 10^6
Engineering notation
1.221489 × 10^6
Prime Factorization
9 × 135721
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1221489
Product of the distinct prime numbers
The prime factorization of 1221489 is 9 × 135721.
Since it has a total of 2 prime factors.
5 , 3 , 8 , 82 , 391 , 986 , 3368 , 4818 , 83061 , 58539 , 283009 , 889417 , 6308941 , 2469249 , 23723219 , 78790316 , 729637441 , 616633577 , 2637968838 , 4911389684
n×2
2442978
n×3
3664467
n×4
4885956
n×5
6107445
n÷2
610744.5
n÷3
407163
n÷3
305372.25
n÷5
244297.8
n2
1492035377121
n3
1822504800764153169
n4
2.2261695665806E+24
n5
2.719241637713E+30
2 √n
1105.2099348088
3 √n
106.89642640075
4 √n
33.244697845051
5 √n
16.49597204902
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1221488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1221489 can be divided by 4 positive divisors.
The sum of these divisors (counting 1221489) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101010001101110001
3
Ternary
2022001120100
4
Quaternary
10222031301
5
Quinary
303041424
6
Senary
42103013
8
Octal
4521561
10
Decimal
1221489
12
Duodecimal
4aaa69
16
Hexadecimal
12a371
20
Vigesimal
7cde9
36
Base36
q6i9
md5
5f2dda63d1ec6a1ca014553e07a0779b
sha1
97c749e897265570bbbed040c7570b8a3f23e2ba
sha256
93e34a47c07ce4872cef1123396a3567521600768f46303376a96f9ac03e3f99
sha512
87401d103fcbbf26322ac7ff893258846a4aa125e49c8d6af66ce7ccf55df7df875930dac895e783c7864509c168e2fca12218dd7d7efcf8574f47631030bbd6
ripemd-160
3c2fd1d1b4724ad9283ceca071674d245b5624db
Diameter
2442978
Circumference
7674841.7376815
Area
4687367379659.4
Volume
7.6340902576171E+18
Surface area
18749469518638
Circumference
7674841.7376815
Perimeter
4885956
Area
1492035377121
Diagonal
1727446.3100895
Surface area
8952212262726
Volume
1822504800764153169
Space diagonal
2115681.0088865
Perimeter
3664467
Area
646070269965.94
Altitude
1057840.5044433
Surface area
646070269965.94
Volume
2.147842505609E+17
Height
575815.43669652