21551371 is an odd 8-digits composite number following 21551370
and preceding 21551372 . In scientific notation, it is written as 2.1551371 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 21205152 positive integers (up to 21551371) that are relatively prime to 21551371.
21551371 has 8 divisors, whose sum is 21900560
The reverse of 21551371 is 17315512
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred fifty-one thousand three hundred seventy-one
Scientific notation
2.1551371 × 10^7
Engineering notation
2.1551371 × 10^6
Prime Factorization
163 × 109 × 1213
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551371
Product of the distinct prime numbers
The prime factorization of 21551371 is 163 × 109 × 1213.
Since it has a total of 3 prime factors.
8 , 8 , 50 , 96 , 471 , 274 , 4580 , 9269 , 38324 , 34 , 156651 , 740938 , 8172224 , 674339 , 84658226 , 15377102 , 975569453 , 98869681 , 7569432317 , 967423858
n×2
43102742
n×3
64654113
n×4
86205484
n×5
107756855
n÷2
10775685.5
n÷3
7183790.3333333
n÷3
5387842.75
n÷5
4310274.2
n2
464461591979641
n3
1.0009784084004E+22
n4
2.1572457042426E+29
n5
4.6491602510289E+36
2 √n
4642.3454201513
3 √n
278.2861768469
4 √n
68.13475926538
5 √n
29.288355048218
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
-21551370
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 21551371 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551371) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100100001011
3
Ternary
1111112220220221
4
Quaternary
1102031210023
5
Quinary
21004120441
6
Senary
2045530511
8
Octal
122154413
10
Decimal
21551371
12
Duodecimal
7273a37
16
Hexadecimal
148d90b
20
Vigesimal
6edi8b
36
Base36
ctx57
md5
c67864aae2e6fadc401ed7e0fc027298
sha1
9eed4818311ac2e6cd1346a52a89be37bcf25341
sha256
ccf701f9f842d34195333d879bb28259da40dd67a760f7ec5a5d95d0f5e4937e
sha512
06dcafd366a19ffe38f52b0f25bcb2deebc4e1ced857067c8525a5254fb5098c4b35b4e0e04503e818b6f6ebe55822d7cc1b43914bae27849da0088c47f39f09
ripemd-160
24ddadd3f46274bca42e5846f14e4d8040c0255e
Diameter
43102742
Circumference
135411257.61678
Area
1.4591491252379E+15
Volume
4.1928885523102E+22
Surface area
5.8365965009514E+15
Circumference
135411257.61678
Perimeter
86205484
Area
464461591979641
Diagonal
30478241.155934
Surface area
2786769551877846
Volume
1.0009784084004E+22
Space diagonal
37328069.544766
Perimeter
64654113
Area
2.0111776886827E+14
Altitude
18664034.772383
Surface area
2.0111776886827E+14
Volume
1.1796643673354E+21
Height
10159413.718645