21556087 is an odd 8-digits composite number following 21556086
and preceding 21556088 . In scientific notation, it is written as 2.1556087 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 18476640 positive integers (up to 21556087) that are relatively prime to 21556087.
21556087 has 4 divisors, whose sum is 24635536
The reverse of 21556087 is 78065512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million five hundred fifty-six thousand eighty-seven
Scientific notation
2.1556087 × 10^7
Engineering notation
2.1556087 × 10^6
Prime Factorization
7 × 3079441
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21556087
Product of the distinct prime numbers
The prime factorization of 21556087 is 7 × 3079441.
Since it has a total of 2 prime factors.
3 , 10 , 86 , 40 , 761 , 267 , 5684 , 3994 , 99954 , 67395 , 901896 , 659987 , 405974 , 1273323 , 4110613 , 76276259 , 468961359 , 973249442 , 7149278354 , 6477440851
n×2
43112174
n×3
64668261
n×4
86224348
n×5
107780435
n÷2
10778043.5
n÷3
7185362.3333333
n÷3
5389021.75
n÷5
4311217.4
n2
464664886751569
n3
1.0016356724662E+22
n4
2.1591345697985E+29
n5
4.6542492631284E+36
2 √n
4642.8533252732
3 √n
278.30647411543
4 √n
68.138486373511
5 √n
29.289636746667
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21556086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556087 can be divided by 4 positive divisors.
The sum of these divisors (counting 21556087) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110101101110111
3
Ternary
1111120011101121
4
Quaternary
1102032231313
5
Quinary
21004243322
6
Senary
2050004411
8
Octal
122165567
10
Decimal
21556087
12
Duodecimal
7276707
16
Hexadecimal
148eb77
20
Vigesimal
6eea47
36
Base36
cu0s7
md5
843806513079f94f0476c447342526fb
sha1
4507a6c8fb935f19dee6231a32b9d8baba2c633d
sha256
0844a383e490f4f9973cf610df7f770484edd429987eb9b63f5dc001b2654d8d
sha512
76c5f941c247d6fb0dfd2559c1dbcc2b6e193f27942a25ab755798491fdd3b62705c15b5703f81ca1f19a22c9e96c2e4d38d68e56d534e125a8a450a11fa031f
ripemd-160
513fdb4fb6700281cdd0cc686ac456a749bec9a0
Diameter
43112174
Circumference
135440889.11868
Area
1.4597877945999E+15
Volume
4.195641693591E+22
Surface area
5.8391511783994E+15
Circumference
135440889.11868
Perimeter
86224348
Area
464664886751569
Diagonal
30484910.587094
Surface area
2787989320509414
Volume
1.0016356724662E+22
Space diagonal
37336237.896375
Perimeter
64668261
Area
2.0120579808674E+14
Altitude
18668118.948187
Surface area
2.0120579808674E+14
Volume
1.1804389604653E+21
Height
10161636.862365