157421 is an odd 6-digits composite number following 157420
and preceding 157422 . In scientific notation, it is written as 1.57421 × 10^5.
The sum of its digits is 20. It has a total of 3 prime factors and 6 positive divisors.
There are 143000 positive integers (up to 157421) that are relatively prime to 157421.
157421 has 6 divisors, whose sum is 173166
The reverse of 157421 is 124751
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2
Name
one hundred fifty-seven thousand four hundred twenty-one
Scientific notation
1.57421 × 10^5
Engineering notation
1.57421 × 10^3
Prime Factorization
11 × 11 × 1301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
14311
Product of the distinct prime numbers
The prime factorization of 157421 is 11 × 11 × 1301.
Since it has a total of 3 prime factors.
1 , 1 , 95 , 17 , 92 , 783 , 6279 , 343 , 96442 , 12748 , 482111 , 118632 , 6611989 , 6591150 , 1266278 , 76794969 , 280022883 , 619499063 , 2281374979 , 5707684433
n×2
314842
n×3
472263
n×4
629684
n×5
787105
n÷2
78710.5
n÷3
52473.666666667
n÷3
39355.25
n÷5
31484.2
n2
24781371241
n3
3901108242129461
n4
6.1411636058426E+20
n5
9.6674811599535E+25
2 √n
396.76315353117
3 √n
53.995084143265
4 √n
19.918914466686
5 √n
10.949960016798
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157421 can be divided by 6 positive divisors.
The sum of these divisors (counting 157421) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110011011101101
3
Ternary
21222221102
4
Quaternary
212123231
5
Quinary
20014141
6
Senary
3212445
8
Octal
463355
10
Decimal
157421
12
Duodecimal
77125
16
Hexadecimal
266ed
20
Vigesimal
jdb1
36
Base36
3dgt
md5
196fe66105407aee65eb04d1eb1a0482
sha1
8f179488d661abfa658db3cc8d9439683df76eb3
sha256
cb75ee7471675bf80a57fc4c77f510b8a90662d0fbec0c5678075e032022d9ef
sha512
c30f5c1cce63b6686183ba53bf1f92a341176cee0f8c788984de9536dc4b9648e6ceb1f1d49edd77bae469c4a3fd23198f2606030940a5aae1f577acb36f0896
ripemd-160
316aeff5ce54b61df4cfd1e761e2167948320bb0
Diameter
314842
Circumference
989105.31424152
Area
77852973836.607
Volume
1.6340923992443E+16
Surface area
311411895346.43
Circumference
989105.31424152
Perimeter
629684
Area
24781371241
Diagonal
222626.91320234
Surface area
148688227446
Volume
3901108242129461
Space diagonal
272661.1701783
Perimeter
472263
Area
10730648517.66
Altitude
136330.58508915
Surface area
10730648517.66
Volume
4.5975001535875E+14
Height
74208.971067445