21551369 is an odd 8-digits composite number following 21551368
and preceding 21551370 . In scientific notation, it is written as 2.1551369 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18472596 positive integers (up to 21551369) that are relatively prime to 21551369.
21551369 has 4 divisors, whose sum is 24630144
The reverse of 21551369 is 96315512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand three hundred sixty-nine
Scientific notation
2.1551369 × 10^7
Engineering notation
2.1551369 × 10^6
Prime Factorization
7 × 3078767
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21551369
Product of the distinct prime numbers
The prime factorization of 21551369 is 7 × 3078767.
Since it has a total of 2 prime factors.
1 , 1 , 31 , 76 , 567 , 749 , 373 , 8703 , 83512 , 75208 , 208261 , 185447 , 3412884 , 6949048 , 9241095 , 51667859 , 20772656 , 603825978 , 692147370 , 5936009789
n×2
43102738
n×3
64654107
n×4
86205476
n×5
107756845
n÷2
10775684.5
n÷3
7183789.6666667
n÷3
5387842.25
n÷5
4310273.8
n2
464461505774161
n3
1.0009781297235E+22
n4
2.15724490346E+29
n5
4.6491580937836E+36
2 √n
4642.345204743
3 √n
278.28616823844
4 √n
68.134757684628
5 √n
29.288354504617
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
-21551368
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 21551369 can be divided by 4 positive divisors.
The sum of these divisors (counting 21551369) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101100100001001
3
Ternary
1111112220220212
4
Quaternary
1102031210021
5
Quinary
21004120434
6
Senary
2045530505
8
Octal
122154411
10
Decimal
21551369
12
Duodecimal
7273a35
16
Hexadecimal
148d909
20
Vigesimal
6edi89
36
Base36
ctx55
md5
562b89de58532cd272331049bfc87d60
sha1
71a91dd3ddae147acd4fe2da87cd244ceb2900ee
sha256
464b5838d3601572472550e88b3a14d8f3a5778c24b11420dec3b6fb34f76ecd
sha512
fc9b00583403308df8b90119724151d3f1a0f87f1ed7e68d7da209ee9e8c74330582d26c1a49202fcafc18a00290ce686d68bda3a55fbf29a3bd428038fd96c1
ripemd-160
9034ff02a8d30087edaa38ebf0bc78396a6d4ff4
Diameter
43102738
Circumference
135411245.05041
Area
1.4591488544154E+15
Volume
4.192887384991E+22
Surface area
5.8365954176614E+15
Circumference
135411245.05041
Perimeter
86205476
Area
464461505774161
Diagonal
30478238.327507
Surface area
2786769034644966
Volume
1.0009781297235E+22
Space diagonal
37328066.080665
Perimeter
64654107
Area
2.011177315402E+14
Altitude
18664033.040332
Surface area
2.011177315402E+14
Volume
1.1796640389115E+21
Height
10159412.775836