20251231 is an odd 8-digits composite number following 20251230
and preceding 20251232 . In scientific notation, it is written as 2.0251231 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 14565600 positive integers (up to 20251231) that are relatively prime to 20251231.
20251231 has 16 divisors, whose sum is 27191808
The reverse of 20251231 is 13215202
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million two hundred fifty-one thousand two hundred thirty-one
Scientific notation
2.0251231 × 10^7
Engineering notation
2.0251231 × 10^6
Prime Factorization
7 × 11 × 13 × 20231
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20251231
Product of the distinct prime numbers
The prime factorization of 20251231 is 7 × 11 × 13 × 20231.
Since it has a total of 4 prime factors.
2 , 8 , 95 , 7 , 243 , 580 , 3156 , 4978 , 68035 , 1377 , 746735 , 232366 , 2629340 , 7042482 , 18943367 , 97329480 , 159117947 , 277505867 , 1899799766 , 8927953239
n×2
40502462
n×3
60753693
n×4
81004924
n×5
101256155
n÷2
10125615.5
n÷3
6750410.3333333
n÷3
5062807.75
n÷5
4050246.2
n2
410112357015361
n3
8.3052800778725E+21
n4
1.6819214537669E+29
n5
3.406097988409E+36
2 √n
4500.1367756992
3 √n
272.57361196217
4 √n
67.083058783117
5 √n
28.926126791816
1 , 7 , 11 , 13 , 77 , 91 , 143 , 1001 , 20231 , 141617 , 222541 , 263003 , 1557787 , 1841021 , 2893033 , 20251231
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20251230
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20251231 can be divided by 16 positive divisors.
The sum of these divisors (counting 20251231) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101010000001001011111
3
Ternary
1102002212110121
4
Quaternary
1031100021133
5
Quinary
20141014411
6
Senary
2002015411
8
Octal
115201137
10
Decimal
20251231
12
Duodecimal
6947567
16
Hexadecimal
135025f
20
Vigesimal
66b81b
36
Base36
c21y7
md5
7a1f031ab9bf4eebebd120c4ab22ef24
sha1
ee77c7e3abd2689c007dfe1451c9e7b7d83699b3
sha256
1f0992505a60f0ec705731f999d5476fc2a1ec60e0bd6932afbb383188d47b24
sha512
79ee134f298070c7562334fa58b80123569ac784ac5221d5d64d275c07977d0d0bd1f398aee9ca1286a3e29b4b8924a490745d088a0db009e1933159aa0ee6c1
ripemd-160
39b9400d52ee27e670db42e78e36152a5e46034e
Diameter
40502462
Circumference
127242237.0715
Area
1.2884059679459E+15
Volume
3.47890758382E+22
Surface area
5.1536238717834E+15
Circumference
127242237.0715
Perimeter
81004924
Area
410112357015361
Diagonal
28639565.53495
Surface area
2460674142092166
Volume
8.3052800778725E+21
Space diagonal
35076161.007814
Perimeter
60753693
Area
1.7758385979061E+14
Altitude
17538080.503907
Surface area
1.7758385979061E+14
Volume
9.787866437862E+20
Height
9546521.8449835