686387871 is an odd 9-digits composite number following 686387870
and preceding 686387872 . In scientific notation, it is written as 6.86387871 × 10^8.
The sum of its digits is 54. It has a total of 5 prime factors and 16 positive divisors.
There are 422392320 positive integers (up to 686387871) that are relatively prime to 686387871.
686387871 has 16 divisors, whose sum is 1095092320
The reverse of 686387871 is 178783686
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 54
Digital Root 9
Name
six hundred eighty-six million three hundred eighty-seven thousand eight hundred seventy-one
Scientific notation
6.86387871 × 10^8
Engineering notation
6.86387871 × 10^6
Prime Factorization
3 × 3 × 3 × 13 × 1955521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
76265319
Product of the distinct prime numbers
The prime factorization of 686387871 is 3 × 3 × 3 × 13 × 1955521.
Since it has a total of 5 prime factors.
3 , 6 , 89 , 11 , 199 , 196 , 5757 , 6355 , 35253 , 31211 , 994979 , 879972 , 4151447 , 9188958 , 4967766 , 92820346 , 9919647 , 273027510 , 1990035048 , 4824037024
n×2
1372775742
n×3
2059163613
n×4
2745551484
n×5
3431939355
n÷2
343193935.5
n÷3
228795957
n÷3
171596967.75
n÷5
137277574.2
n2
471128309455912641
n3
3.2337675729527E+26
n4
2.2196188397079E+35
n5
1.5235194498186E+44
2 √n
26199.005152868
3 √n
882.11092362155
4 √n
161.86106744016
5 √n
58.521293947307
1 , 3 , 9 , 13 , 27 , 39 , 117 , 351 , 1955521 , 5866563 , 17599689 , 25421773 , 52799067 , 76265319 , 228795957 , 686387871
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-686387870
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 686387871 can be divided by 16 positive divisors.
The sum of these divisors (counting 686387871) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000111010010111001010011111
3
Ternary
1202211120010011000
4
Quaternary
220322113022133
5
Quinary
2401203402441
6
Senary
152035401343
8
Octal
5072271237
10
Decimal
686387871
12
Duodecimal
171a53253
16
Hexadecimal
28e9729f
20
Vigesimal
ae9i9db
36
Base36
bcno9r
md5
0a62da624dbffba7d2c099cf4e6431f9
sha1
3f2cefbc2cac251cd8ca0532d3c3bf5829571e0f
sha256
779f9b635c69df2bcda6befab2b6431b791902cfd736ea39319510205985c55c
sha512
b19442cd0a2535d7ea8205c515a575e7ffc37e5e72f1a0e1d45d575258181ed7129744ad40cbbf67058c6f630ec2ad97b13a892c6be22c52aa80761a65192101
ripemd-160
10c0759f09c7b4b799f7a350ae2f2aa656360bd3
Diameter
1372775742
Circumference
4312702186.0935
Area
1.4800932358849E+18
Volume
1.354557393414E+27
Surface area
5.9203729435395E+18
Circumference
4312702186.0935
Perimeter
2745551484
Area
471128309455912641
Diagonal
970699036.21659
Surface area
2826769856735475846
Volume
3.2337675729527E+26
Space diagonal
1188858666.271
Perimeter
2059163613
Area
2.0400454221542E+17
Altitude
594429333.13552
Surface area
2.0400454221542E+17
Volume
3.8110316326934E+25
Height
323566345.40553