20949986 is an even 8-digits composite number following 20949985
and preceding 20949987 . In scientific notation, it is written as 2.0949986 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 10137060 positive integers (up to 20949986) that are relatively prime to 20949986.
20949986 has 8 divisors, whose sum is 32438784
The reverse of 20949986 is 68994902
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred forty-nine thousand nine hundred eighty-six
Scientific notation
2.0949986 × 10^7
Engineering notation
2.0949986 × 10^6
Prime Factorization
2 × 31 × 337903
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20949986
Product of the distinct prime numbers
The prime factorization of 20949986 is 2 × 31 × 337903.
Since it has a total of 3 prime factors.
6 , 6 , 27 , 67 , 243 , 710 , 6785 , 16 , 90531 , 94355 , 527784 , 892413 , 6032405 , 3953524 , 49745804 , 72528075 , 434323054 , 533685846 , 9086971048 , 4714452972
n×2
41899972
n×3
62849958
n×4
83799944
n×5
104749930
n÷2
10474993
n÷3
6983328.6666667
n÷3
5237496.5
n÷5
4189997.2
n2
438901913400196
n3
9.1949889411073E+21
n4
1.9263488958635E+29
n5
4.0356982399456E+36
2 √n
4577.1154671911
3 √n
275.67321998516
4 √n
67.654382468478
5 √n
29.123042729727
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
-20949985
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 20949986 can be divided by 8 positive divisors.
The sum of these divisors (counting 20949986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111111010101111100010
3
Ternary
1110102100222102
4
Quaternary
1033322233202
5
Quinary
20330344421
6
Senary
2025010402
8
Octal
117725742
10
Decimal
20949986
12
Duodecimal
7023a02
16
Hexadecimal
13fabe2
20
Vigesimal
6aiej6
36
Base36
ch142
md5
26aac0a364e99509bdc40819cd9776e0
sha1
39b33db9b7e52036108df4822ea52602350dddd9
sha256
38882cbf7d89f3639ef1a89d69a2341db5be74fa7d514732fa8f1f9170f3a60b
sha512
eaa1f55705f51a0e3e0a4e5f0c55e2e4add89773b0ee42187ad72ba997a4ea266374a4f8b3549e19577fc67feb19302accebab23dbcac418809450e7c27ed1f2
ripemd-160
93fe295a9a07a819c9e4d9ef1ec0d33ba3916816
Diameter
41899972
Circumference
131632644.22082
Area
1.3788510267846E+15
Volume
3.851587960963E+22
Surface area
5.5154041071382E+15
Circumference
131632644.22082
Perimeter
83799944
Area
438901913400196
Diagonal
29627754.332726
Surface area
2633411480401176
Volume
9.1949889411073E+21
Space diagonal
36286440.169857
Perimeter
62849958
Area
1.9005010338708E+14
Altitude
18143220.084928
Surface area
1.9005010338708E+14
Volume
1.0836398388654E+21
Height
9875918.1109088