21552391 is an odd 8-digits composite number following 21552390
and preceding 21552392 . In scientific notation, it is written as 2.1552391 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 18378528 positive integers (up to 21552391) that are relatively prime to 21552391.
21552391 has 8 divisors, whose sum is 24757920
The reverse of 21552391 is 19325512
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-two thousand three hundred ninety-one
Scientific notation
2.1552391 × 10^7
Engineering notation
2.1552391 × 10^6
Prime Factorization
7 × 197 × 15629
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21552391
Product of the distinct prime numbers
The prime factorization of 21552391 is 7 × 197 × 15629.
Since it has a total of 3 prime factors.
8 , 8 , 62 , 22 , 60 , 873 , 9073 , 1218 , 9123 , 95401 , 440152 , 495733 , 9832358 , 2735859 , 55377572 , 29147330 , 264860054 , 517285657 , 5105514644 , 9554511938
n×2
43104782
n×3
64657173
n×4
86209564
n×5
107761955
n÷2
10776195.5
n÷3
7184130.3333333
n÷3
5388097.75
n÷5
4310478.2
n2
464505557816881
n3
1.0011205403743E+22
n4
2.1576541324277E+29
n5
4.6502605504848E+36
2 √n
4642.4552771136
3 √n
278.29056709231
4 √n
68.135565434754
5 √n
29.288632279366
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
-21552390
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 21552391 can be divided by 8 positive divisors.
The sum of these divisors (counting 21552391) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101110100000111
3
Ternary
1111112222022201
4
Quaternary
1102031310013
5
Quinary
21004134031
6
Senary
2045535331
8
Octal
122156407
10
Decimal
21552391
12
Duodecimal
7274547
16
Hexadecimal
148dd07
20
Vigesimal
6ee0jb
36
Base36
ctxxj
md5
cd87a01b249bf90b18c4e21be61944b4
sha1
cb98b4968880b239a3ca39ed51de9e66d1ab4c47
sha256
ccf2a958fa13e67e77f519d24e2283680628222e19cd243cdb5f294fe3647894
sha512
4754aca8dfa7292c571564e5dafece5e2cfb37dc45f89239f53a94dfecd986ac2d35efb526cd8ffe91d55533613a540b530a9c61571c0e4a8a636e839f49df84
ripemd-160
d14a2bceab3c28b27a89401ebcd6babe4a4a5356
Diameter
43104782
Circumference
135417666.46579
Area
1.4592872479891E+15
Volume
4.1934839133301E+22
Surface area
5.8371489919566E+15
Circumference
135417666.46579
Perimeter
86209564
Area
464505557816881
Diagonal
30479683.653768
Surface area
2787033346901286
Volume
1.0011205403743E+22
Space diagonal
37329836.23659
Perimeter
64657173
Area
2.0113680663424E+14
Altitude
18664918.118295
Surface area
2.0113680663424E+14
Volume
1.179831871473E+21
Height
10159894.551256