20157621 is an odd 8-digits composite number following 20157620
and preceding 20157622 . In scientific notation, it is written as 2.0157621 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 12216720 positive integers (up to 20157621) that are relatively prime to 20157621.
20157621 has 8 divisors, whose sum is 29320224
The reverse of 20157621 is 12675102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred fifty-seven thousand six hundred twenty-one
Scientific notation
2.0157621 × 10^7
Engineering notation
2.0157621 × 10^6
Prime Factorization
3 × 11 × 610837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157621
Product of the distinct prime numbers
The prime factorization of 20157621 is 3 × 11 × 610837.
Since it has a total of 3 prime factors.
3 , 2 , 2 , 66 , 909 , 311 , 7239 , 9960 , 98572 , 758 , 721323 , 871092 , 8605154 , 2819771 , 8828504 , 6072659 , 158645934 , 279670918 , 4709850073 , 1880371013
n×2
40315242
n×3
60472863
n×4
80630484
n×5
100788105
n÷2
10078810.5
n÷3
6719207
n÷3
5039405.25
n÷5
4031524.2
n2
406329684379641
n3
8.1906397787744E+21
n4
1.6510381240806E+29
n5
3.3281000761767E+36
2 √n
4489.7239336066
3 √n
272.15297857206
4 √n
67.005402271806
5 √n
28.899335380816
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
-20157620
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 20157621 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157621) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010010110101
3
Ternary
1101221010001120
4
Quaternary
1030321102311
5
Quinary
20130020441
6
Senary
2000014153
8
Octal
114712265
10
Decimal
20157621
12
Duodecimal
6901359
16
Hexadecimal
13394b5
20
Vigesimal
65je11
36
Base36
c01px
md5
ceca79276a3889388103409a5165ceed
sha1
2673343a1b48c2ee117f7ea9a3390de4c2b467d7
sha256
7c473b67b4ce92f3e5effd287799158c8b24f0e6ff465a0d806e13481dc7e857
sha512
30dbd01fc022641e288d84f415c0c0978ec61aed4d50e4c860cde1659e82fd91e9404a137654a1d8d5ace128310a95c8a28eb424666d4c987ce7db4df7186c8b
ripemd-160
b83e434e99ee7cfa7176cd8458c635c714512177
Diameter
40315242
Circumference
126654068.09489
Area
1.2765223513825E+15
Volume
3.4308871676264E+22
Surface area
5.1060894055302E+15
Circumference
126654068.09489
Perimeter
80630484
Area
406329684379641
Diagonal
28507181.003377
Surface area
2437978106277846
Volume
8.1906397787744E+21
Space diagonal
34914023.731717
Perimeter
60472863
Area
1.7594591449224E+14
Altitude
17457011.865859
Surface area
1.7594591449224E+14
Volume
9.6527615497128E+20
Height
9502393.6677922