1681921 is an odd 7-digits composite number following 1681920
and preceding 1681922 . In scientific notation, it is written as 1.681921 × 10^6.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 1608772 positive integers (up to 1681921) that are relatively prime to 1681921.
1681921 has 4 divisors, whose sum is 1755072
The reverse of 1681921 is 1291861
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 28
Digital Root 1
Name
one million six hundred eighty-one thousand nine hundred twenty-one
Scientific notation
1.681921 × 10^6
Engineering notation
1.681921 × 10^6
Prime Factorization
23 × 73127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1681921
Product of the distinct prime numbers
The prime factorization of 1681921 is 23 × 73127.
Since it has a total of 2 prime factors.
2 , 10 , 98 , 34 , 387 , 96 , 9215 , 4928 , 70564 , 46548 , 128937 , 441998 , 3004290 , 4363263 , 79894961 , 2951071 , 138741117 , 924212693 , 6849649321 , 9686218429
n×2
3363842
n×3
5045763
n×4
6727684
n×5
8409605
n÷2
840960.5
n÷3
560640.33333333
n÷3
420480.25
n÷5
336384.2
n2
2828858250241
n3
4757916097103592961
n4
8.0024389999566E+24
n5
1.3459470205246E+31
2 √n
1296.8889698043
3 √n
118.92373240744
4 √n
36.012344686292
5 √n
17.585759058441
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
-1681920
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 1681921 can be divided by 4 positive divisors.
The sum of these divisors (counting 1681921) is 1, the average is 0.25.
Base
System
Value
2
Binary
110011010101000000001
3
Ternary
10011110011101
4
Quaternary
12122220001
5
Quinary
412310141
6
Senary
100014401
8
Octal
6325001
10
Decimal
1681921
12
Duodecimal
691401
16
Hexadecimal
19aa01
20
Vigesimal
aa4g1
36
Base36
101s1
md5
167fef31bc224d1b5c11308b37f96d3d
sha1
4d1b422e3e1c638ea1d5f8ebd9bb3e7bbc117156
sha256
1fc1f0021a0c01987fc3669ed5b808f8d4cb5bdead3e2bfb60f7ef74ab308938
sha512
e9bc4d2f8daba6cd0b504a978e1b19304bbee7bdf94c9511c09f78dece56915fa8b050af373d6c6801ba58f8317b86fa400f141ec3605c800718462c870eb777
ripemd-160
78121ffee31750d9c03073aba1aa5335a3c99b92
Diameter
3363842
Circumference
10567821.315037
Area
8887120297004
Volume
1.9929912342743E+19
Surface area
35548481188016
Circumference
10567821.315037
Perimeter
6727684
Area
2828858250241
Diagonal
2378595.4890401
Surface area
16973149501446
Volume
4757916097103592961
Space diagonal
2913172.6263171
Perimeter
5045763
Area
1224931554207
Altitude
1456586.3131585
Surface area
1224931554207
Volume
5.6072578942976E+17
Height
792865.16301337