2156889 is an odd 7-digits composite number following 2156888
and preceding 2156890 . In scientific notation, it is written as 2.156889 × 10^6.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 1224720 positive integers (up to 2156889) that are relatively prime to 2156889.
2156889 has 16 divisors, whose sum is 3307520
The reverse of 2156889 is 9886512
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 39
Digital Root 3
Name
two million one hundred fifty-six thousand eight hundred eighty-nine
Scientific notation
2.156889 × 10^6
Engineering notation
2.156889 × 10^6
Prime Factorization
3 × 7 × 271 × 379
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2156889
Product of the distinct prime numbers
The prime factorization of 2156889 is 3 × 7 × 271 × 379.
Since it has a total of 4 prime factors.
7 , 5 , 93 , 6 , 804 , 730 , 2385 , 97 , 96237 , 74607 , 455683 , 665592 , 3034367 , 9168516 , 42766296 , 37149294 , 54915680 , 373204792 , 7261807689 , 3900000455
n×2
4313778
n×3
6470667
n×4
8627556
n×5
10784445
n÷2
1078444.5
n÷3
718963
n÷3
539222.25
n÷5
431377.8
n2
4652170158321
n3
1.0034214640611E+19
n4
2.1642687181972E+25
n5
4.6680873913237E+31
2 √n
1468.6350806106
3 √n
129.2039918955
4 √n
38.322774959684
5 √n
18.482706160278
1 , 3 , 7 , 21 , 271 , 379 , 813 , 1137 , 1897 , 2653 , 5691 , 7959 , 102709 , 308127 , 718963 , 2156889
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
-2156888
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 2156889 can be divided by 16 positive divisors.
The sum of these divisors (counting 2156889) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000001110100101011001
3
Ternary
11001120200210
4
Quaternary
20032211121
5
Quinary
1023010024
6
Senary
114121333
8
Octal
10164531
10
Decimal
2156889
12
Duodecimal
880249
16
Hexadecimal
20e959
20
Vigesimal
d9c49
36
Base36
1a89l
md5
4411dd74f3049812e4a7599330cba2a7
sha1
cd7f4ad111176f78f5b5687dda16702b465b621a
sha256
9d4e2be4e3d74212a020aa9347fc285a567089c9e311e962f863efc634d65be9
sha512
e757ecee0fd41e4f52ab928e9772911ad2d8218a32d19a15a5ddfaac89f4c18a6d4623be46904a20bc9e099bd3fcbdcfca19702270698d6d02e9acf5481e83fa
ripemd-160
4e5d5a09b3422afe36053faf78d57eb1925b68cd
Diameter
4313778
Circumference
13552133.274017
Area
14615223592631
Volume
4.2031219999315E+19
Surface area
58460894370524
Circumference
13552133.274017
Perimeter
8627556
Area
4652170158321
Diagonal
3050301.6763333
Surface area
27913020949926
Volume
1.0034214640611E+19
Space diagonal
3735841.3342864
Perimeter
6470667
Area
2014448769916.9
Altitude
1867920.6671432
Surface area
2014448769916.9
Volume
1.1825435360429E+18
Height
1016767.2254444