20972961 is an odd 8-digits composite number following 20972960
and preceding 20972962 . In scientific notation, it is written as 2.0972961 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 13928760 positive integers (up to 20972961) that are relatively prime to 20972961.
20972961 has 12 divisors, whose sum is 30409600
The reverse of 20972961 is 16927902
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred seventy-two thousand nine hundred sixty-one
Scientific notation
2.0972961 × 10^7
Engineering notation
2.0972961 × 10^6
Prime Factorization
3 × 3 × 271 × 8599
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6990987
Product of the distinct prime numbers
The prime factorization of 20972961 is 3 × 3 × 271 × 8599.
Since it has a total of 4 prime factors.
7 , 4 , 92 , 73 , 428 , 568 , 521 , 5063 , 8660 , 90175 , 395812 , 197633 , 4579548 , 8954624 , 70503028 , 53802480 , 874880017 , 526649962 , 4085067942 , 8639144580
n×2
41945922
n×3
62918883
n×4
83891844
n×5
104864805
n÷2
10486480.5
n÷3
6990987
n÷3
5243240.25
n÷5
4194592.2
n2
439865093107521
n3
9.2252734430054E+21
n4
1.9348130013449E+29
n5
4.0578757619499E+36
2 √n
4579.6245479297
3 √n
275.77395638301
4 √n
67.672923299719
5 √n
29.129427541526
1 , 3 , 9 , 271 , 813 , 2439 , 8599 , 25797 , 77391 , 2330329 , 6990987 , 20972961
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20972960
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20972961 can be divided by 12 positive divisors.
The sum of these divisors (counting 20972961) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000000010110100001
3
Ternary
1110110112111100
4
Quaternary
1100000112201
5
Quinary
20332113321
6
Senary
2025305013
8
Octal
120002641
10
Decimal
20972961
12
Duodecimal
7035169
16
Hexadecimal
14005a1
20
Vigesimal
6b1c81
36
Base36
chiu9
md5
45f6e56d91464da08a3225bb9efbc25d
sha1
571be017a2b848465a0aa91f979e73b3bec6a2f9
sha256
4cce3a3c5b9612727224488ad3e6a4ad34777821b0e82cb38018dd9422abc180
sha512
18c05f0fe841baf5bd36740be580892496c94c6bd2a14c348a9a4a50ade1ad891eaac71a979215d9562230e7e172b4fbacb66094aa0bbcb1ebd0ee7d43b1cc6e
ripemd-160
21f9c050dc32f827dc3a620d4a78b3d3a10eea4c
Diameter
41945922
Circumference
131777000.40325
Area
1.3818769450772E+15
Volume
3.8642735034537E+22
Surface area
5.5275077803087E+15
Circumference
131777000.40325
Perimeter
83891844
Area
439865093107521
Diagonal
29660245.889322
Surface area
2639190558645126
Volume
9.2252734430054E+21
Space diagonal
36326234.037161
Perimeter
62918883
Area
1.9046717243456E+14
Altitude
18163117.01858
Surface area
1.9046717243456E+14
Volume
1.0872089016415E+21
Height
9886748.629774