20157742 is an even 8-digits composite number following 20157741
and preceding 20157743 . In scientific notation, it is written as 2.0157742 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 9162600 positive integers (up to 20157742) that are relatively prime to 20157742.
20157742 has 8 divisors, whose sum is 32985432
The reverse of 20157742 is 24775102
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred fifty-seven thousand seven hundred forty-two
Scientific notation
2.0157742 × 10^7
Engineering notation
2.0157742 × 10^6
Prime Factorization
2 × 11 × 916261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20157742
Product of the distinct prime numbers
The prime factorization of 20157742 is 2 × 11 × 916261.
Since it has a total of 3 prime factors.
9 , 8 , 78 , 89 , 968 , 90 , 1397 , 4604 , 30353 , 23214 , 864198 , 394825 , 4604139 , 3529510 , 50158562 , 73472367 , 41330738 , 420883007 , 9379454478 , 120556622
n×2
40315484
n×3
60473226
n×4
80630968
n×5
100788710
n÷2
10078871
n÷3
6719247.3333333
n÷3
5039435.5
n÷5
4031548.4
n2
406334562538564
n3
8.1907872773352E+21
n4
1.6510777671341E+29
n5
3.3281999651825E+36
2 √n
4489.7374088024
3 √n
272.15352312118
4 √n
67.005502824786
5 √n
28.899370075498
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
-20157741
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 20157742 can be divided by 8 positive divisors.
The sum of these divisors (counting 20157742) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111001010100101110
3
Ternary
1101221010020001
4
Quaternary
1030321110232
5
Quinary
20130021432
6
Senary
2000014514
8
Octal
114712456
10
Decimal
20157742
12
Duodecimal
690143a
16
Hexadecimal
133952e
20
Vigesimal
65je72
36
Base36
c01ta
md5
aa1178a7b8bf1511c412705687f39165
sha1
b55bfc32f5c3e7c4b90fff98cd5afc8e4f1004cf
sha256
53d91d14393982bd510b9124e2370673ce16b82df61412e0b83315ab3a17512a
sha512
200139da429c094678e7d9d62661063222c7fe28beec5e61ff81d9ef4a5a8b7a0ac7a10a6201efb347861d0c161ae554579a1566ef5a5300896c954b544ea9a6
ripemd-160
f6df2d91369c4d410607ac71930e7a71a8569468
Diameter
40315484
Circumference
126654828.36032
Area
1.2765376765708E+15
Volume
3.4309489516791E+22
Surface area
5.1061507062831E+15
Circumference
126654828.36032
Perimeter
80630968
Area
406334562538564
Diagonal
28507352.123218
Surface area
2438007375231384
Volume
8.1907872773352E+21
Space diagonal
34914233.309865
Perimeter
60473226
Area
1.7594802679702E+14
Altitude
17457116.654933
Surface area
1.7594802679702E+14
Volume
9.6529353784337E+20
Height
9502450.7077393