21551639 is an odd 8-digits prime number following 21551638
and preceding 21551640 . In scientific notation, it is written as 2.1551639 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21551638 positive integers (up to 21551639) that are relatively prime to 21551639.
21551639 has 2 divisors, whose sum is 21551640
The reverse of 21551639 is 93615512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand six hundred thirty-nine
Scientific notation
2.1551639 × 10^7
Engineering notation
2.1551639 × 10^6
Prime Factorization
21551639
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21551639
Product of the distinct prime numbers
The prime factorization of 21551639 is 21551639.
Since it has a total of 1 prime factors.
10 , 1 , 86 , 76 , 584 , 303 , 6494 , 5294 , 468 , 78166 , 929315 , 356231 , 6117234 , 3925425 , 26161000 , 13785450 , 619476374 , 155139393 , 324188738 , 5539035763
n×2
43103278
n×3
64654917
n×4
86206556
n×5
107758195
n÷2
10775819.5
n÷3
7183879.6666667
n÷3
5387909.75
n÷5
4310327.8
n2
464473143586321
n3
1.0010157515768E+22
n4
2.1573530111296E+29
n5
4.6494493291428E+36
2 √n
4642.3742847814
3 √n
278.28733037578
4 √n
68.134971085203
5 √n
29.28842789036
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21551640
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10775820
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4642.3743924849
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999071996
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551639 can be divided by 2 positive divisors.
The sum of these divisors (counting 21551639) is 21551640, the average is 10775820.
Base
System
Value
2
Binary
1010010001101101000010111
3
Ternary
1111112221021212
4
Quaternary
1102031220113
5
Quinary
21004123024
6
Senary
2045532035
8
Octal
122155027
10
Decimal
21551639
12
Duodecimal
727401b
16
Hexadecimal
148da17
20
Vigesimal
6edj1j
36
Base36
ctxcn
md5
39f7cd8db355ca7ccc448f6e0a065b08
sha1
1edeeeda1b8bcc823ec226fb59eaaf6edf5d0a5d
sha256
af6a0396ebc89b35759ae08adc0827d13e7437301b8d3fdc3c490bb52eee0a10
sha512
7fa416c60213da4f6174c9b688366a0a4332be6e0f4bcd3fd6bd85b8f1064e8337f41076325e7f62df628b96e6a466fd8bf678b4bb158a93b3e08e677a0142d3
ripemd-160
aa37ea8ee5da89220b3d0fca9a1a52411d053a53
Diameter
43103278
Circumference
135412941.51044
Area
1.4591854156805E+15
Volume
4.1930449750416E+22
Surface area
5.8367416627222E+15
Circumference
135412941.51044
Perimeter
86206556
Area
464473143586321
Diagonal
30478620.165169
Surface area
2786838861517926
Volume
1.0010157515768E+22
Space diagonal
37328533.734383
Perimeter
64654917
Area
2.0112277086069E+14
Altitude
18664266.867191
Surface area
2.0112277086069E+14
Volume
1.1797083766908E+21
Height
10159540.055056