20121817 is an odd 8-digits composite number following 20121816
and preceding 20121818 . In scientific notation, it is written as 2.0121817 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 19023984 positive integers (up to 20121817) that are relatively prime to 20121817.
20121817 has 8 divisors, whose sum is 21224000
The reverse of 20121817 is 71812102
Previous prime number is 757
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred twenty-one thousand eight hundred seventeen
Scientific notation
2.0121817 × 10^7
Engineering notation
2.0121817 × 10^6
Prime Factorization
19 × 757 × 1399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121817
Product of the distinct prime numbers
The prime factorization of 20121817 is 19 × 757 × 1399.
Since it has a total of 3 prime factors.
9 , 2 , 15 , 28 , 740 , 847 , 6920 , 1439 , 17490 , 81807 , 846523 , 521375 , 536922 , 2467867 , 33629352 , 33852902 , 717880823 , 185094619 , 4484254274 , 7144236168
n×2
40243634
n×3
60365451
n×4
80487268
n×5
100609085
n÷2
10060908.5
n÷3
6707272.3333333
n÷3
5030454.25
n÷5
4024363.4
n2
404887519381489
n3
8.1470725705783E+21
n4
1.639339033509E+29
n5
3.2986480033224E+36
2 √n
4485.7348338929
3 √n
271.99175021836
4 √n
66.975628656198
5 √n
28.889061869561
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
-20121816
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 20121817 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121817) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100011011001
3
Ternary
1101212021221111
4
Quaternary
1030300203121
5
Quinary
20122344232
6
Senary
1555140321
8
Octal
114604331
10
Decimal
20121817
12
Duodecimal
68a46a1
16
Hexadecimal
13308d9
20
Vigesimal
65f4ah
36
Base36
bza3d
md5
14d749f708612ff18a799cb584bb68bd
sha1
ec0a79c43bbedaad54df4c025a527b897dfc3c5c
sha256
2fb14fb79b4b9b827bb722ab9c31c4b48308a484cb9408c768f69ad7c4354326
sha512
c09b4c1a857617c64ac29d8ae6a53be09dd106c94349c5a4f09dd6ea84b5f484ff158eb4ccbad8e2c47306b261008004c32429a9a104bb5b0844395253bbfb64
ripemd-160
926678da857cb7d4893661290f695d88df2b50b7
Diameter
40243634
Circumference
126429104.92816
Area
1.2719916564191E+15
Volume
3.4126377781322E+22
Surface area
5.0879666256763E+15
Circumference
126429104.92816
Perimeter
80487268
Area
404887519381489
Diagonal
28456546.50099
Surface area
2429325116288934
Volume
8.1470725705783E+21
Space diagonal
34852009.384603
Perimeter
60365451
Area
1.7532143872982E+14
Altitude
17426004.692302
Surface area
1.7532143872982E+14
Volume
9.601417102458E+20
Height
9485515.5003298