21030157 is an odd 8-digits composite number following 21030156
and preceding 21030158 . In scientific notation, it is written as 2.1030157 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20962656 positive integers (up to 21030157) that are relatively prime to 21030157.
21030157 has 4 divisors, whose sum is 21097660
The reverse of 21030157 is 75103012
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million thirty thousand one hundred fifty-seven
Scientific notation
2.1030157 × 10^7
Engineering notation
2.1030157 × 10^6
Prime Factorization
313 × 67189
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21030157
Product of the distinct prime numbers
The prime factorization of 21030157 is 313 × 67189.
Since it has a total of 2 prime factors.
10 , 4 , 18 , 14 , 418 , 703 , 5041 , 8597 , 43195 , 22915 , 24883 , 431286 , 2096933 , 6271586 , 1537923 , 18630911 , 707295695 , 131774021 , 6081172887 , 3842718572
n×2
42060314
n×3
63090471
n×4
84120628
n×5
105150785
n÷2
10515078.5
n÷3
7010052.3333333
n÷3
5257539.25
n÷5
4206031.4
n2
442267503444649
n3
9.300955033439E+21
n4
1.9560054460316E+29
n5
4.11351016229E+36
2 √n
4585.864912969
3 √n
276.0244193545
4 √n
67.719014412268
5 √n
29.145298188036
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
-21030156
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 21030157 can be divided by 4 positive divisors.
The sum of these divisors (counting 21030157) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110010100001101
3
Ternary
1110120102221201
4
Quaternary
1100032110031
5
Quinary
20340431112
6
Senary
2030425501
8
Octal
120162415
10
Decimal
21030157
12
Duodecimal
7062291
16
Hexadecimal
140e50d
20
Vigesimal
6b8f7h
36
Base36
ciqz1
md5
08736faaf64ff1d1a1ea0f1b25672807
sha1
655505923aadb51bd5e73b7e0ccb14c5d19e5d79
sha256
4b0f685215add323a8c55e945aaccaa1b8a29cc411a699ea67d92ff3073c09ba
sha512
6ff00eb2400557fd6a0e4ae6e4a62e02bd52c83a82c65294f155e30141439b0f5bf552b09f0f774abc6ea4692941aa12fec50c445511a6e7dfd94ea64d429782
ripemd-160
e74caca7d89b2d8e8abfe0b287351321728fff20
Diameter
42060314
Circumference
132136373.47008
Area
1.3894243397432E+15
Volume
3.8959749339228E+22
Surface area
5.5576973589728E+15
Circumference
132136373.47008
Perimeter
84120628
Area
442267503444649
Diagonal
29741133.248235
Surface area
2653605020667894
Volume
9.300955033439E+21
Space diagonal
36425300.41515
Perimeter
63090471
Area
1.9150744662569E+14
Altitude
18212650.207575
Surface area
1.9150744662569E+14
Volume
1.0961280626093E+21
Height
9913711.0827452