20156749 is an odd 8-digits composite number following 20156748
and preceding 20156750 . In scientific notation, it is written as 2.0156749 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 18798912 positive integers (up to 20156749) that are relatively prime to 20156749.
20156749 has 8 divisors, whose sum is 20587680
The reverse of 20156749 is 94765102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred fifty-six thousand seven hundred forty-nine
Scientific notation
2.0156749 × 10^7
Engineering notation
2.0156749 × 10^6
Prime Factorization
1739 × 67 × 173
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20156749
Product of the distinct prime numbers
The prime factorization of 20156749 is 1739 × 67 × 173.
Since it has a total of 3 prime factors.
4 , 2 , 78 , 92 , 484 , 862 , 6011 , 4380 , 89428 , 56987 , 256301 , 85286 , 7620077 , 5540151 , 30016225 , 82912244 , 898979681 , 601886632 , 4264305068 , 8378595345
n×2
40313498
n×3
60470247
n×4
80626996
n×5
100783745
n÷2
10078374.5
n÷3
6718916.3333333
n÷3
5039187.25
n÷5
4031349.8
n2
406294530249001
n3
8.189576866302E+21
n4
1.6507524531026E+29
n5
3.3273802858323E+36
2 √n
4489.6268219085
3 √n
272.14905415361
4 √n
67.004677612152
5 √n
28.899085344798
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
-20156748
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 20156749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20156749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001000101001101
3
Ternary
1101221001212021
4
Quaternary
1030321011031
5
Quinary
20130003444
6
Senary
2000010141
8
Octal
114710515
10
Decimal
20156749
12
Duodecimal
6900951
16
Hexadecimal
133914d
20
Vigesimal
65jbh9
36
Base36
c011p
md5
a92667172bdd2d5b1d5c784cbc572a6f
sha1
84f33bdf58444a6c88e17ec907156ffc50fd6332
sha256
e0d862e83c4915df297a2abe66719ba1d49682e68f98a4565b04e201fb34653b
sha512
80a8c31f6ae1426bcf2bc6db40efa40691cde110548b6e167e983aca3996417a3f8e248180940e7cff0febff97e4d293e7c13e123de7a8b6f26e2dfbc0bbce0b
ripemd-160
bedc92aa71f582140740ddf70307ccb94bc6ac96
Diameter
40313498
Circumference
126648589.15731
Area
1.276411911424E+15
Volume
3.4304419358911E+22
Surface area
5.1056476456959E+15
Circumference
126648589.15731
Perimeter
80626996
Area
406294530249001
Diagonal
28505947.80915
Surface area
2437767181494006
Volume
8.189576866302E+21
Space diagonal
34912513.383413
Perimeter
60470247
Area
1.7593069230715E+14
Altitude
17456256.691707
Surface area
1.7593069230715E+14
Volume
9.6515088953511E+20
Height
9501982.6030501