20121810 is an even 8-digits composite number following 20121809
and preceding 20121811 . In scientific notation, it is written as 2.0121810 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors.
There are 5365808 positive integers (up to 20121810) that are relatively prime to 20121810.
20121810 has 16 divisors, whose sum is 48292416
The reverse of 20121810 is 01812102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred twenty-one thousand eight hundred ten
Scientific notation
2.0121810 × 10^7
Engineering notation
2.0121810 × 10^6
Prime Factorization
2 × 3 × 5 × 670727
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121810
Product of the distinct prime numbers
The prime factorization of 20121810 is 2 × 3 × 5 × 670727.
Since it has a total of 4 prime factors.
7 , 3 , 69 , 91 , 714 , 218 , 1556 , 8791 , 50393 , 35838 , 119770 , 357428 , 4991493 , 7932990 , 59000869 , 20995712 , 707676139 , 947362729 , 3651909219 , 8282837707
n×2
40243620
n×3
60365430
n×4
80487240
n×5
100609050
n÷2
10060905
n÷3
6707270
n÷3
5030452.5
n÷5
4024362
n2
404887237676100
n3
8.1470640679433E+21
n4
1.6393367523298E+29
n5
3.2986422656398E+36
2 √n
4485.7340536416
3 √n
271.99171867809
4 √n
66.975622831308
5 √n
28.889059859569
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 670727 , 1341454 , 2012181 , 3353635 , 4024362 , 6707270 , 10060905 , 20121810
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
-20121809
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 20121810 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121810) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100011010010
3
Ternary
1101212021221020
4
Quaternary
1030300203102
5
Quinary
20122344220
6
Senary
1555140310
8
Octal
114604322
10
Decimal
20121810
12
Duodecimal
68a4696
16
Hexadecimal
13308d2
20
Vigesimal
65f4aa
36
Base36
bza36
md5
a72b837a9f10ea425d3b1ffc34ddb593
sha1
a0e27f4c5c46c0047f1bcba831c6e34dae34ea70
sha256
8a6ea986f105c255754f556a81ae20a533536c8ce75756387e4645ab6cf3f468
sha512
caaa910c5c23a39e151f466a47a7b409985a32e92f6a0a8a6cb074862c1e7a807a5747bc036dce7c0eeccd955bcbd496adde74824152d16d2f1c38c4e898ff2e
ripemd-160
d7f8505d9f2354a04bb88c6042bec3086d53965e
Diameter
40243620
Circumference
126429060.94586
Area
1.2719907714155E+15
Volume
3.4126342165568E+22
Surface area
5.087963085662E+15
Circumference
126429060.94586
Perimeter
80487240
Area
404887237676100
Diagonal
28456536.601495
Surface area
2429323426056600
Volume
8.1470640679433E+21
Space diagonal
34851997.260248
Perimeter
60365430
Area
1.7532131674781E+14
Altitude
17425998.630124
Surface area
1.7532131674781E+14
Volume
9.6014070820066E+20
Height
9485512.2004982