21551356 is an even 8-digits composite number following 21551355
and preceding 21551357 . In scientific notation, it is written as 2.1551356 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 10744448 positive integers (up to 21551356) that are relatively prime to 21551356.
21551356 has 12 divisors, whose sum is 37824192
The reverse of 21551356 is 65315512
Previous prime number is 353
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-one thousand three hundred fifty-six
Scientific notation
2.1551356 × 10^7
Engineering notation
2.1551356 × 10^6
Prime Factorization
2 × 2 × 353 × 15263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10775678
Product of the distinct prime numbers
The prime factorization of 21551356 is 2 × 2 × 353 × 15263.
Since it has a total of 4 prime factors.
2 , 5 , 75 , 53 , 559 , 417 , 5852 , 3606 , 25657 , 70965 , 661692 , 540685 , 743136 , 8885106 , 80660556 , 16169123 , 204633972 , 480110678 , 9529596465 , 297393952
n×2
43102712
n×3
64654068
n×4
86205424
n×5
107756780
n÷2
10775678
n÷3
7183785.3333333
n÷3
5387839
n÷5
4310271.2
n2
464460945438736
n3
1.0009763183247E+22
n4
2.1572396983784E+29
n5
4.6491440717086E+36
2 √n
4642.3438045884
3 √n
278.28611228344
4 √n
68.134747409735
5 √n
29.288350971211
1 , 2 , 4 , 353 , 706 , 1412 , 15263 , 30526 , 61052 , 5387839 , 10775678 , 21551356
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551355
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551356 can be divided by 12 positive divisors.
The sum of these divisors (counting 21551356) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001101100011111100
3
Ternary
1111112220220101
4
Quaternary
1102031203330
5
Quinary
21004120411
6
Senary
2045530444
8
Octal
122154374
10
Decimal
21551356
12
Duodecimal
7273a24
16
Hexadecimal
148d8fc
20
Vigesimal
6edi7g
36
Base36
ctx4s
md5
92970bc51eb6526e283a28cd0a69bdd1
sha1
b93211deb828e11e5bbf507d2e77832feeb2d211
sha256
9874da215d1aee8e959d3dc4049752c6129141b3586970a7c54cb50e423491ef
sha512
0e1c54e04eded011e5fc2f036eb69a7fe396d795edd385360ffa699cee8f727c7c8ba195af71b0eae349218874b4e40ace13745153182c02de6bb7631a77eefe
ripemd-160
5752053a09bc491178295e4b0fdcb4a00d0bad78
Diameter
43102712
Circumference
135411163.369
Area
1.4591470940697E+15
Volume
4.1928797974216E+22
Surface area
5.8365883762788E+15
Circumference
135411163.369
Perimeter
86205424
Area
464460945438736
Diagonal
30478219.942731
Surface area
2786765672632416
Volume
1.0009763183247E+22
Space diagonal
37328043.564004
Perimeter
64654068
Area
2.0111748890784E+14
Altitude
18664021.782002
Surface area
2.0111748890784E+14
Volume
1.1796619041575E+21
Height
10159406.647577