142961 is an odd 6-digits composite number following 142960
and preceding 142962 . In scientific notation, it is written as 1.42961 × 10^5.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 113040 positive integers (up to 142961) that are relatively prime to 142961.
142961 has 8 divisors, whose sum is 176064
The reverse of 142961 is 169241
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 23
Digital Root 5
Name
one hundred forty-two thousand nine hundred sixty-one
Scientific notation
1.42961 × 10^5
Engineering notation
1.42961 × 10^3
Prime Factorization
7 × 13 × 1571
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
142961
Product of the distinct prime numbers
The prime factorization of 142961 is 7 × 13 × 1571.
Since it has a total of 3 prime factors.
7 , 6 , 5 , 27 , 673 , 391 , 6818 , 7255 , 46849 , 14846 , 760835 , 656464 , 3094699 , 8473565 , 26914839 , 64968763 , 392201823 , 489301191 , 1940952168 , 3447939208
n×2
285922
n×3
428883
n×4
571844
n×5
714805
n÷2
71480.5
n÷3
47653.666666667
n÷3
35740.25
n÷5
28592.2
n2
20437847521
n3
2921815119449681
n4
4.1770561129165E+20
n5
5.9715611895865E+25
2 √n
378.10183813359
3 √n
52.288460956654
4 √n
19.444840913044
5 √n
10.740970294072
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
-142960
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 142961 can be divided by 8 positive divisors.
The sum of these divisors (counting 142961) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010111001110001
3
Ternary
21021002212
4
Quaternary
202321301
5
Quinary
14033321
6
Senary
3021505
8
Octal
427161
10
Decimal
142961
12
Duodecimal
6a895
16
Hexadecimal
22e71
20
Vigesimal
hh81
36
Base36
32b5
md5
bed8062494421470c1c46f8828524d20
sha1
60fb0a7f9ae6ba075ec22b01ea53a52b28fed480
sha256
d788d13e0b850e26646b61e5ac31638c1322a3dc24af1b24df6391a32f62ed98
sha512
ca434846045a53444b1643a6f468a401ad39e4125546e5adaa2d4040bc726786896b91de90cf0f732107e3c099e99b6f034da5e350e452cbc284a86b545ccf85
ripemd-160
f045ac24da998603b82d1bbebbc02ab94a80980a
Diameter
285922
Circumference
898250.4546997
Area
64207391627.162
Volume
1.2238870552548E+16
Surface area
256829566508.65
Circumference
898250.4546997
Perimeter
571844
Area
20437847521
Diagonal
202177.38509042
Surface area
122627085126
Volume
2921815119449681
Space diagonal
247615.71550085
Perimeter
428883
Area
8849847575.9294
Altitude
123807.85775043
Surface area
8849847575.9294
Volume
3.4433921405604E+14
Height
67392.461696807