21346987 is an odd 8-digits composite number following 21346986
and preceding 21346988 . In scientific notation, it is written as 2.1346987 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 20561184 positive integers (up to 21346987) that are relatively prime to 21346987.
21346987 has 8 divisors, whose sum is 22136400
The reverse of 21346987 is 78964312
Previous prime number is 659
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million three hundred forty-six thousand nine hundred eighty-seven
Scientific notation
2.1346987 × 10^7
Engineering notation
2.1346987 × 10^6
Prime Factorization
29 × 659 × 1117
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21346987
Product of the distinct prime numbers
The prime factorization of 21346987 is 29 × 659 × 1117.
Since it has a total of 3 prime factors.
3 , 3 , 65 , 90 , 290 , 541 , 5067 , 7268 , 91901 , 72688 , 446085 , 562113 , 1232506 , 4777555 , 87743011 , 32250991 , 144806084 , 992197264 , 1797678453 , 5454502470
n×2
42693974
n×3
64040961
n×4
85387948
n×5
106734935
n÷2
10673493.5
n÷3
7115662.3333333
n÷3
5336746.75
n÷5
4269397.4
n2
455693853978169
n3
9.7276907768519E+21
n4
2.0765688855348E+29
n5
4.4328489004115E+36
2 √n
4620.279969872
3 √n
277.40366539511
4 √n
67.972641333642
5 √n
29.232591459261
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
-21346986
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 21346987 can be divided by 8 positive divisors.
The sum of these divisors (counting 21346987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011011101010101011
3
Ternary
1111011112120011
4
Quaternary
1101123222223
5
Quinary
20431100422
6
Senary
2041312351
8
Octal
121335253
10
Decimal
21346987
12
Duodecimal
71956b7
16
Hexadecimal
145baab
20
Vigesimal
6d8797
36
Base36
cpjfv
md5
4c48298872fd64eb3535dec0cbbd7bf6
sha1
ebb44390f105a4c478cd3f82be0e80d9ffe082c1
sha256
d0234eb07ea513424d4578eee5935ea1a1c1a8dbfc34d55b72b2fadd9cba8590
sha512
3207690142285d4b6beb4b36436326253bdba34c0c5ad18d7a447837bcfc2155dc9a888c6b1948e0399ee0593ad05158335a7a17719681474f6f82383391dfe0
ripemd-160
716d144be768679fcc3249c0ab464689c5126a6c
Diameter
42693974
Circumference
134127075.07095
Area
1.4316044639438E+15
Volume
4.0747255841268E+22
Surface area
5.7264178557753E+15
Circumference
134127075.07095
Perimeter
85387948
Area
455693853978169
Diagonal
30189198.531202
Surface area
2734163123869014
Volume
9.7276907768519E+21
Space diagonal
36974066.072512
Perimeter
64040961
Area
1.9732122694677E+14
Altitude
18487033.036256
Surface area
1.9732122694677E+14
Volume
1.1464193522663E+21
Height
10063066.177067