87961421 is an odd 8-digits composite number following 87961420
and preceding 87961422 . In scientific notation, it is written as 8.7961421 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 87500700 positive integers (up to 87961421) that are relatively prime to 87961421.
87961421 has 4 divisors, whose sum is 88422144
The reverse of 87961421 is 12416978
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-seven million nine hundred sixty-one thousand four hundred twenty-one
Scientific notation
8.7961421 × 10^7
Engineering notation
8.7961421 × 10^6
Prime Factorization
191 × 460531
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87961421
Product of the distinct prime numbers
The prime factorization of 87961421 is 191 × 460531.
Since it has a total of 2 prime factors.
8 , 6 , 92 , 62 , 488 , 101 , 524 , 1913 , 23673 , 40252 , 449914 , 44040 , 7043251 , 8263603 , 72745559 , 90219074 , 61058688 , 851098423 , 1771570467 , 5603242310
n×2
175922842
n×3
263884263
n×4
351845684
n×5
439807105
n÷2
43980710.5
n÷3
29320473.666667
n÷3
21990355.25
n÷5
17592284.2
n2
7737211584339241
n3
6.8057612553614E+23
n4
5.9864443100833E+31
n5
5.2657614825229E+39
2 √n
9378.7750266226
3 √n
444.73100942524
4 √n
96.84407584681
5 √n
38.802387402097
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
-87961420
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 87961421 can be divided by 4 positive divisors.
The sum of these divisors (counting 87961421) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001111100010111101001101
3
Ternary
20010111220101102
4
Quaternary
11033202331031
5
Quinary
140004231141
6
Senary
12421152445
8
Octal
517427515
10
Decimal
87961421
12
Duodecimal
2555b725
16
Hexadecimal
53e2f4d
20
Vigesimal
179f3b1
36
Base36
1gdbgt
md5
e7c8665705a4973731bae53368c08193
sha1
6d766e79289fea8ee90574e619e7c0ee8efaf599
sha256
b6b75fd9143a059a27331d1fb5bb5c1b82a5a4fb659aecbbec0d629ecfea7907
sha512
3ed66beab496d2d9fa6cb4226867ad7b566f4e709e399aaaaec8fb6b64c5105c16a2f7ceb4a82c39d9a64b49f78fa5e5084b89b2c459b5f955b1913d2acb3ee5
ripemd-160
5405fbc4e6f619aec1ca2a1f50d5869081f59ce4
Diameter
175922842
Circumference
552677908.02584
Area
2.430716707263E+16
Volume
2.8507906082573E+24
Surface area
9.722866829052E+16
Circumference
552677908.02584
Perimeter
351845684
Area
7737211584339241
Diagonal
124396234.54381
Surface area
46423269506035446
Volume
6.8057612553614E+23
Space diagonal
152353650.27796
Perimeter
263884263
Area
3.3503108932465E+15
Altitude
76176825.138978
Surface area
3.3503108932465E+15
Volume
8.0206665580045E+22
Height
41465411.514603