20121551 is an odd 8-digits composite number following 20121550
and preceding 20121552 . In scientific notation, it is written as 2.0121551 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 19062504 positive integers (up to 20121551) that are relatively prime to 20121551.
20121551 has 4 divisors, whose sum is 21180600
The reverse of 20121551 is 15512102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty-one thousand five hundred fifty-one
Scientific notation
2.0121551 × 10^7
Engineering notation
2.0121551 × 10^6
Prime Factorization
19 × 1059029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121551
Product of the distinct prime numbers
The prime factorization of 20121551 is 19 × 1059029.
Since it has a total of 2 prime factors.
2 , 5 , 46 , 6 , 588 , 297 , 7000 , 5685 , 96506 , 14928 , 704149 , 264707 , 4377152 , 2226877 , 81978354 , 63851811 , 881903751 , 231696501 , 5062511646 , 7399200052
n×2
40243102
n×3
60364653
n×4
80486204
n×5
100607755
n÷2
10060775.5
n÷3
6707183.6666667
n÷3
5030387.75
n÷5
4024310.2
n2
404876814645601
n3
8.146749474609E+21
n4
1.6392523503757E+29
n5
3.2984299769954E+36
2 √n
4485.7051842492
3 √n
271.99055168305
4 √n
66.975407309319
5 √n
28.88898548947
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
-20121550
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 20121551 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121551) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000011111001111
3
Ternary
1101212021120122
4
Quaternary
1030300133033
5
Quinary
20122342201
6
Senary
1555135155
8
Octal
114603717
10
Decimal
20121551
12
Duodecimal
68a44bb
16
Hexadecimal
13307cf
20
Vigesimal
65f3hb
36
Base36
bz9vz
md5
e3519e05188b082f82f9e9db998e7233
sha1
1e9e527ff376ce9516129e4f4636b78d1cdbe379
sha256
3e19803cf6f35ef1a743e943de244594000ecb8fe85ba99c898a3b5a31a44380
sha512
76457854b483ab0814abc60b821dba8d15ece396cbcf47ba4d7a33680c2db77e073b167ad5f9e632b589a4cc19e32728dd7ef54886cea35b323b811d63ba98ab
ripemd-160
0b949b796a3dcfc32d7c741573aa896e8da7aca6
Diameter
40243102
Circumference
126427433.60086
Area
1.2719580264995E+15
Volume
3.4125024400091E+22
Surface area
5.0878321059978E+15
Circumference
126427433.60086
Perimeter
80486204
Area
404876814645601
Diagonal
28456170.320182
Surface area
2429260887873606
Volume
8.146749474609E+21
Space diagonal
34851548.659088
Perimeter
60364653
Area
1.7531680344321E+14
Altitude
17425774.329544
Surface area
1.7531680344321E+14
Volume
9.6010363302066E+20
Height
9485390.1067273