1921921 is an odd 7-digits prime number following 1921920
and preceding 1921922 . In scientific notation, it is written as 1.921921 × 10^6.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 1921920 positive integers (up to 1921921) that are relatively prime to 1921921.
1921921 has 2 divisors, whose sum is 1921922
The reverse of 1921921 is 1291291
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 25
Digital Root 7
Name
one million nine hundred twenty-one thousand nine hundred twenty-one
Scientific notation
1.921921 × 10^6
Engineering notation
1.921921 × 10^6
Prime Factorization
1921921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1921921
Product of the distinct prime numbers
The prime factorization of 1921921 is 1921921.
Since it has a total of 1 prime factors.
3 , 9 , 48 , 47 , 542 , 950 , 4200 , 6849 , 34808 , 12765 , 926356 , 838691 , 6759461 , 9197522 , 2655155 , 73927165 , 512282242 , 993896223 , 967639832 , 1406258271
n×2
3843842
n×3
5765763
n×4
7687684
n×5
9609605
n÷2
960960.5
n÷3
640640.33333333
n÷3
480480.25
n÷5
384384.2
n2
3693780330241
n3
7099153986077112961
n4
1.3644013128075E+25
n5
2.6222715355124E+31
2 √n
1386.3336539232
3 √n
124.33073776627
4 √n
37.233501768208
5 √n
18.061220986509
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1921922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
960961
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1386.3340145867
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999998959375
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1921921 can be divided by 2 positive divisors.
The sum of these divisors (counting 1921921) is 1921922, the average is 960961.
Base
System
Value
2
Binary
111010101001110000001
3
Ternary
10121122101021
4
Quaternary
13111032001
5
Quinary
443000141
6
Senary
105105441
8
Octal
7251601
10
Decimal
1921921
12
Duodecimal
788281
16
Hexadecimal
1d5381
20
Vigesimal
c04g1
36
Base36
156yp
md5
8262ef44b6abcc6346bef6d788314c7c
sha1
51852f6e1aa11571d9cc3a3f6aa4ac4f6732260c
sha256
db5173b753641ce047a0ccfb63649e596372ae65f5d232b02e7e1a353f52ced5
sha512
46c53f9c93d83a464aa38d1ba72d7fc3aa86cf54fcc4915a5ea3b341afe582cfb145a10728b75488f5e6103d79a866ad40eb3e71957c8f3698d134fdfd7b2f7d
ripemd-160
f104c3536fc6ddbcebd4f7bddf46ea081d889e15
Diameter
3843842
Circumference
12075785.78876
Area
11604353149460
Volume
2.973686667915E+19
Surface area
46417412597838
Circumference
12075785.78876
Perimeter
7687684
Area
3693780330241
Diagonal
2718006.7440097
Surface area
22162681981446
Volume
7099153986077112961
Space diagonal
3328864.8201336
Perimeter
5765763
Area
1599453800994
Altitude
1664432.4100668
Surface area
1599453800994
Volume
8.3664332070711E+17
Height
906002.24800322