856 is an even 3-digits composite number following 855
and preceding 857 . In scientific notation, it is written as 8.56 × 10^2.
The sum of its digits is 19. It has a total of 4 prime factors and 8 positive divisors.
There are 424 positive integers (up to 856) that are relatively prime to 856.
856 has 8 divisors, whose sum is 1620
The reverse of 856 is 658
Previous prime number is 2
Is Prime? no
Number parity even
Number length 3
Sum of Digits 19
Digital Root 1
Name
eight hundred fifty-six
Scientific notation
8.56 × 10^2
Engineering notation
8.56 × 10^0
Prime Factorization
2 × 2 × 2 × 107
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
214
Product of the distinct prime numbers
The prime factorization of 856 is 2 × 2 × 2 × 107.
Since it has a total of 4 prime factors.
6 , 2 , 28 , 27 , 318 , 958 , 5822 , 9652 , 47140 , 24125 , 904608 , 202765 , 4665342 , 7361250 , 65564571 , 56414833 , 862438852 , 398332768 , 5543399062 , 6100590891
n×2
1712
n×3
2568
n×4
3424
n×5
4280
n÷2
428
n÷3
285.33333333333
n÷3
214
n÷5
171.2
n2
732736
n3
627222016
n4
536902045696
n5
459588151115776
2 √n
29.257477676656
3 √n
9.4949187970468
4 √n
5.4090181804701
5 √n
3.8591774898062
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
-855
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 856 can be divided by 8 positive divisors.
The sum of these divisors (counting 856) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011000
3
Ternary
1011201
4
Quaternary
31120
5
Quinary
11411
6
Senary
3544
8
Octal
1530
10
Decimal
856
12
Duodecimal
5b4
16
Hexadecimal
358
20
Vigesimal
22g
36
Base36
ns
md5
8c235f89a8143a28a1d6067e959dd858
sha1
efe76debc08f498165df7f907b88ebc293d438e1
sha256
c0cc3b36d8f848d56fbf95b8259dd6f3bf80707e436233a6bfc2667b49e28c8a
sha512
9917780270d9770607a6a0d8468b7139cf8be0e2d84f2c2d5f531cb26c23315b3778be9b18b1d07f8a91792d9f82d1e3acc11066501868f5338fd589a5aed1f8
ripemd-160
99d4e89cd33d8db4de08ecbef7294a2bf70a3f8d
Diameter
1712
Circumference
5378.4066229457
Area
2301958.0346208
Volume
2627301436.8472
Surface area
9207832.1384831
Circumference
5378.4066229457
Perimeter
3424
Area
732736
Diagonal
1210.5668093914
Surface area
4396416
Volume
627222016
Space diagonal
1482.635491279
Perimeter
2568
Area
317283.9951337
Altitude
741.31774563948
Surface area
317283.9951337
Volume
73918823.470516
Height
403.52226979712