20857729 is an odd 8-digits prime number following 20857728
and preceding 20857730 . In scientific notation, it is written as 2.0857729 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 20857728 positive integers (up to 20857729) that are relatively prime to 20857729.
20857729 has 2 divisors, whose sum is 20857730
The reverse of 20857729 is 92775802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million eight hundred fifty-seven thousand seven hundred twenty-nine
Scientific notation
2.0857729 × 10^7
Engineering notation
2.0857729 × 10^6
Prime Factorization
20857729
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20857729
Product of the distinct prime numbers
The prime factorization of 20857729 is 20857729.
Since it has a total of 1 prime factors.
10 , 5 , 40 , 4 , 755 , 320 , 3957 , 3274 , 47474 , 67864 , 877754 , 707275 , 938069 , 8152713 , 81491422 , 67209019 , 908329765 , 310509892 , 8540405005 , 3345644573
n×2
41715458
n×3
62573187
n×4
83430916
n×5
104288645
n÷2
10428864.5
n÷3
6952576.3333333
n÷3
5214432.25
n÷5
4171545.8
n2
435044859037441
n3
9.0740477726461E+21
n4
1.8926402937491E+29
n5
3.9476178341498E+36
2 √n
4567.0262753788
3 √n
275.26796580091
4 √n
67.579777118445
5 √n
29.097347726152
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20857730
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10428865
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4567.0263848592
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999041123
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20857729 can be divided by 2 positive divisors.
The sum of these divisors (counting 20857729) is 20857730, the average is 10428865.
Base
System
Value
2
Binary
1001111100100001110000001
3
Ternary
1110020200102111
4
Quaternary
1033210032001
5
Quinary
20314421404
6
Senary
2023015321
8
Octal
117441601
10
Decimal
20857729
12
Duodecimal
6b9a541
16
Hexadecimal
13e4381
20
Vigesimal
6a7469
36
Base36
cf1xd
md5
85e51a42adb8c3b16e603ba38698542e
sha1
87b2a7ab9dc347be2da8f63dab935c45d947c53d
sha256
e0f48888ab731a66e94c838ce14ca7610b41377cd70292eabcc9e34bd00bd290
sha512
47dde45107e7df89c0fbbc07cc918930c9142d67569191a5c2de19064070fe94c323184c32da97d508170efac44430830655d446da8d7202fe3f8f3f3f25f8b5
ripemd-160
816b05c8ecfd6e99b779fc652cb4563b973b239b
Diameter
41715458
Circumference
131052976.39393
Area
1.366733733134E+15
Volume
3.8009282427824E+22
Surface area
5.4669349325361E+15
Circumference
131052976.39393
Perimeter
83430916
Area
435044859037441
Diagonal
29497283.232103
Surface area
2610269154224646
Volume
9.0740477726461E+21
Space diagonal
36126646.358503
Perimeter
62573187
Area
1.8837994985612E+14
Altitude
18063323.179251
Surface area
1.8837994985612E+14
Volume
1.0693867854748E+21
Height
9832427.7440342