20121508 is an even 8-digits composite number following 20121507
and preceding 20121509 . In scientific notation, it is written as 2.0121508 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors.
There are 9146120 positive integers (up to 20121508) that are relatively prime to 20121508.
20121508 has 12 divisors, whose sum is 38413872
The reverse of 20121508 is 80512102
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand five hundred eight
Scientific notation
2.0121508 × 10^7
Engineering notation
2.0121508 × 10^6
Prime Factorization
2 × 2 × 11 × 457307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10060754
Product of the distinct prime numbers
The prime factorization of 20121508 is 2 × 2 × 11 × 457307.
Since it has a total of 4 prime factors.
6 , 9 , 48 , 42 , 919 , 462 , 593 , 142 , 12177 , 57264 , 317216 , 922304 , 8422242 , 612282 , 57576658 , 31317879 , 510721270 , 718159189 , 8164857211 , 5873953094
n×2
40243016
n×3
60364524
n×4
80486032
n×5
100607540
n÷2
10060754
n÷3
6707169.3333333
n÷3
5030377
n÷5
4024301.6
n2
404875084194064
n3
8.1466972456115E+21
n4
1.6392383380115E+29
n5
3.2983947332205E+36
2 √n
4485.7003912433
3 √n
271.99035793387
4 √n
66.975371527475
5 √n
28.888973142236
1 , 2 , 4 , 11 , 22 , 44 , 457307 , 914614 , 1829228 , 5030377 , 10060754 , 20121508
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121507
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121508 can be divided by 12 positive divisors.
The sum of these divisors (counting 20121508) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110000011110100100
3
Ternary
1101212021112001
4
Quaternary
1030300132210
5
Quinary
20122342013
6
Senary
1555135044
8
Octal
114603644
10
Decimal
20121508
12
Duodecimal
68a4484
16
Hexadecimal
13307a4
20
Vigesimal
65f3f8
36
Base36
bz9us
md5
14a9c1611a2c9ab9f31274bb89f6f56c
sha1
3f5cc4858a9be604465c35be4bf3b2d0039ea04c
sha256
897917efcfcb5b1532a5419585c6aeca77d749230b673f951dd12bd3ac30d607
sha512
26f3b386cb2b19b9a265e9343b28b453637044efbec39954868eaa87e0b0638f7f8a1037bbb9d671c5553938d4f976465dad99ea7e622d7216ee12f5b47b21f4
ripemd-160
5f1d4daea093ae8a5c6e8b8486bd47f4bd87de95
Diameter
40243016
Circumference
126427163.4239
Area
1.2719525901256E+15
Volume
3.4124805623778E+22
Surface area
5.0878103605025E+15
Circumference
126427163.4239
Perimeter
80486032
Area
404875084194064
Diagonal
28456109.508999
Surface area
2429250505164384
Volume
8.1466972456115E+21
Space diagonal
34851474.180904
Perimeter
60364524
Area
1.7531605413571E+14
Altitude
17425737.090452
Surface area
1.7531605413571E+14
Volume
9.6009747777428E+20
Height
9485369.8363329