20972649 is an odd 8-digits composite number following 20972648
and preceding 20972650 . In scientific notation, it is written as 2.0972649 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13970016 positive integers (up to 20972649) that are relatively prime to 20972649.
20972649 has 8 divisors, whose sum is 27987040
The reverse of 20972649 is 94627902
Previous prime number is 1657
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred seventy-two thousand six hundred forty-nine
Scientific notation
2.0972649 × 10^7
Engineering notation
2.0972649 × 10^6
Prime Factorization
3 × 1657 × 4219
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20972649
Product of the distinct prime numbers
The prime factorization of 20972649 is 3 × 1657 × 4219.
Since it has a total of 3 prime factors.
5 , 1 , 28 , 21 , 586 , 686 , 9231 , 8879 , 2837 , 19438 , 214261 , 263720 , 4947870 , 6146357 , 37369191 , 14400292 , 5238665 , 661612368 , 6455201166 , 1472939519
n×2
41945298
n×3
62917947
n×4
83890596
n×5
104863245
n÷2
10486324.5
n÷3
6990883
n÷3
5243162.25
n÷5
4194529.8
n2
439852006077201
n3
9.224861735403E+21
n4
1.9346978725014E+29
n5
4.0575739401018E+36
2 √n
4579.5904838752
3 √n
275.77258887779
4 √n
67.672671617686
5 √n
29.129340873406
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
-20972648
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 20972649 can be divided by 8 positive divisors.
The sum of these divisors (counting 20972649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000000010001101001
3
Ternary
1110110112001210
4
Quaternary
1100000101221
5
Quinary
20332111044
6
Senary
2025303333
8
Octal
120002151
10
Decimal
20972649
12
Duodecimal
7034b49
16
Hexadecimal
1400469
20
Vigesimal
6b1bc9
36
Base36
chill
md5
84ac0ef5abbc1901ad05be61a02a13b0
sha1
722b4d26b9ee756ecf1dad9c12aabfe8259c8aff
sha256
f95851a5fdc9a69e0d0127d6ff9fcf7f7003026fc6ae47c0a28bea76ec1014c5
sha512
fbb52384a7f63c98724cd8b9586e5a9c6de022a67cc94ed43366c6822f1cbe74d8a6489758ca9d2969f1d5b7423e43fbf90f048c0dc6fc05197c5b32d17993da
ripemd-160
57c25a3f27d5f71954f3bc8a6b9884213ec336b8
Diameter
41945298
Circumference
131775040.04943
Area
1.3818358309589E+15
Volume
3.8641010477765E+22
Surface area
5.5273433238355E+15
Circumference
131775040.04943
Perimeter
83890596
Area
439852006077201
Diagonal
29659804.654691
Surface area
2639112036463206
Volume
9.224861735403E+21
Space diagonal
36325693.637309
Perimeter
62917947
Area
1.904615055842E+14
Altitude
18162846.818654
Surface area
1.904615055842E+14
Volume
1.0871603814353E+21
Height
9886601.5515635