20698981 is an odd 8-digits prime number following 20698980
and preceding 20698982 . In scientific notation, it is written as 2.0698981 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 20698980 positive integers (up to 20698981) that are relatively prime to 20698981.
20698981 has 2 divisors, whose sum is 20698982
The reverse of 20698981 is 18989602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million six hundred ninety-eight thousand nine hundred eighty-one
Scientific notation
2.0698981 × 10^7
Engineering notation
2.0698981 × 10^6
Prime Factorization
20698981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20698981
Product of the distinct prime numbers
The prime factorization of 20698981 is 20698981.
Since it has a total of 1 prime factors.
9 , 7 , 13 , 60 , 540 , 362 , 1698 , 4759 , 14870 , 41388 , 626555 , 522190 , 9403601 , 7939161 , 46643169 , 38023687 , 573868565 , 971542847 , 828670814 , 6148693697
n×2
41397962
n×3
62096943
n×4
82795924
n×5
103494905
n÷2
10349490.5
n÷3
6899660.3333333
n÷3
5174745.25
n÷5
4139796.2
n2
428447814438361
n3
8.8684331705512E+21
n4
1.8356752969701E+29
n5
3.7996608094153E+36
2 √n
4549.613280269
3 √n
274.56783249143
4 √n
67.450821197885
5 √n
29.052920331103
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20698982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10349491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4549.6133901684
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033769
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20698981 can be divided by 2 positive divisors.
The sum of these divisors (counting 20698981) is 20698982, the average is 10349491.
Base
System
Value
2
Binary
1001110111101011101100101
3
Ternary
1102221121122221
4
Quaternary
1032331131211
5
Quinary
20244331411
6
Senary
2015352341
8
Octal
116753545
10
Decimal
20698981
12
Duodecimal
6b226b1
16
Hexadecimal
13bd765
20
Vigesimal
697791
36
Base36
cbnfp
md5
5530d4f55db0a00113009b02c934158f
sha1
45ff6e601651ec8d267ed451de9fba8284e9c12b
sha256
d89eeadfd377d54e84ba8b44e2b9766a776471e8dfcfaabce4d2e90fa56917e2
sha512
01311ab0a50bdf50c64e1c0df2dea1a721dae6414cfa633c32d9456790977f7e571b70db3103954b2bcbc861fd9b4981a80a431588cde3a29959338d51c7e36f
ripemd-160
e825caa675a9617ff95eec1d425204901f6e4e8e
Diameter
41397962
Circumference
130055533.29279
Area
1.3460085062862E+15
Volume
3.7148005996607E+22
Surface area
5.3840340251446E+15
Circumference
130055533.29279
Perimeter
82795924
Area
428447814438361
Diagonal
29272779.657503
Surface area
2570686886630166
Volume
8.8684331705512E+21
Space diagonal
35851686.756903
Perimeter
62096943
Area
1.8552334574977E+14
Altitude
17925843.378451
Surface area
1.8552334574977E+14
Volume
1.0451548722327E+21
Height
9757593.2191677