21551239 is an odd 8-digits composite number following 21551238
and preceding 21551240 . In scientific notation, it is written as 2.1551239 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 20744160 positive integers (up to 21551239) that are relatively prime to 21551239.
21551239 has 8 divisors, whose sum is 22373568
The reverse of 21551239 is 93215512
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-one thousand two hundred thirty-nine
Scientific notation
2.1551239 × 10^7
Engineering notation
2.1551239 × 10^6
Prime Factorization
47 × 61 × 7517
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551239
Product of the distinct prime numbers
The prime factorization of 21551239 is 47 × 61 × 7517.
Since it has a total of 3 prime factors.
8 , 2 , 30 , 88 , 427 , 960 , 5850 , 6812 , 59390 , 6800 , 840638 , 856089 , 4594459 , 7296426 , 21499481 , 83805779 , 759608249 , 198459003 , 9939680389 , 1763970218
n×2
43102478
n×3
64653717
n×4
86204956
n×5
107756195
n÷2
10775619.5
n÷3
7183746.3333333
n÷3
5387809.75
n÷5
4310247.8
n2
464455902435121
n3
1.000960015834E+22
n4
2.1571928530682E+29
n5
4.6490178745565E+36
2 √n
4642.331203178
3 √n
278.28560868738
4 √n
68.134654935488
5 √n
29.288319170479
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
-21551238
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 21551239 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551239) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100010000111
3
Ternary
1111112220202001
4
Quaternary
1102031202013
5
Quinary
21004114424
6
Senary
2045530131
8
Octal
122154207
10
Decimal
21551239
12
Duodecimal
7273947
16
Hexadecimal
148d887
20
Vigesimal
6edi1j
36
Base36
ctx1j
md5
4ba3e33580d2cc5961c8ce47e3f2a496
sha1
c609839c32628bb8643e09e0295b5cad3050ecc0
sha256
a5f8e1a259dba6ace71450aa664e7c1add33fb4291015570f44b06cd2441efec
sha512
77c9cf140665b55cfb3b0ac3e7d4886801bc710eb532e6253910e1e774807f953e20543cbddbe97b43a22ca18e3a44c52275a7fcdcd02cdef9af8facbe7b162e
ripemd-160
037cd841741eaf41802289af42e4ff70cc35fd76
Diameter
43102478
Circumference
135410428.23632
Area
1.4591312510066E+15
Volume
4.1928115097083E+22
Surface area
5.8365250040264E+15
Circumference
135410428.23632
Perimeter
86204956
Area
464455902435121
Diagonal
30478054.479744
Surface area
2786735414610726
Volume
1.000960015834E+22
Space diagonal
37327840.91406
Perimeter
64653717
Area
2.0111530522322E+14
Altitude
18663920.45703
Surface area
2.0111530522322E+14
Volume
1.179642691488E+21
Height
10159351.493248