20131257 is an odd 8-digits composite number following 20131256
and preceding 20131258 . In scientific notation, it is written as 2.0131257 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13420836 positive integers (up to 20131257) that are relatively prime to 20131257.
20131257 has 4 divisors, whose sum is 26841680
The reverse of 20131257 is 75213102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred thirty-one thousand two hundred fifty-seven
Scientific notation
2.0131257 × 10^7
Engineering notation
2.0131257 × 10^6
Prime Factorization
3 × 6710419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131257
Product of the distinct prime numbers
The prime factorization of 20131257 is 3 × 6710419.
Since it has a total of 2 prime factors.
6 , 2 , 37 , 18 , 398 , 997 , 8920 , 7642 , 64939 , 32002 , 635098 , 756592 , 2167590 , 8043756 , 70218229 , 21430185 , 710552859 , 778421279 , 6210441128 , 5247699471
n×2
40262514
n×3
60393771
n×4
80525028
n×5
100656285
n÷2
10065628.5
n÷3
6710419
n÷3
5032814.25
n÷5
4026251.4
n2
405267508400049
n3
8.158544365351E+21
n4
1.6424175336478E+29
n5
3.3063929471171E+36
2 √n
4486.7869349903
3 √n
272.03427786721
4 √n
66.983482553465
5 √n
28.891771978514
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20131256
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20131257 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131257) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010110110111001
3
Ternary
1101212202220010
4
Quaternary
1030302312321
5
Quinary
20123200012
6
Senary
1555252133
8
Octal
114626671
10
Decimal
20131257
12
Duodecimal
68aa049
16
Hexadecimal
1332db9
20
Vigesimal
65g82h
36
Base36
bzhdl
md5
c03d019679ff37cb5305bf7b4743d1f3
sha1
2e7b15cabc8ec5be4cfe80e22d5797e7168476e3
sha256
e2cd520fcd4fcb686e9cd5d5bf211847f7621411edc59e2956baea73db669961
sha512
8c25c5d923eca3679802404b6444053488582b9f9e4f33bed6bccd1b6461db9ea01bddd227e27731962a85cc33f38407fdad00e3f0841b6266ccd1176a37b764
ripemd-160
b62929f8585551589facd6306cdee3beedba59ef
Diameter
40262514
Circumference
126488418.19746
Area
1.2731854271282E+15
Volume
3.4174430722898E+22
Surface area
5.0927417085129E+15
Circumference
126488418.19746
Perimeter
80525028
Area
405267508400049
Diagonal
28469896.677018
Surface area
2431605050400294
Volume
8.158544365351E+21
Space diagonal
34868359.944227
Perimeter
60393771
Area
1.7548597880143E+14
Altitude
17434179.972113
Surface area
1.7548597880143E+14
Volume
9.6149367422517E+20
Height
9489965.5590061