20121998 is an even 8-digits composite number following 20121997
and preceding 20121999 . In scientific notation, it is written as 2.0121998 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 8966496 positive integers (up to 20121998) that are relatively prime to 20121998.
20121998 has 16 divisors, whose sum is 33626880
The reverse of 20121998 is 89912102
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred twenty-one thousand nine hundred ninety-eight
Scientific notation
2.0121998 × 10^7
Engineering notation
2.0121998 × 10^6
Prime Factorization
2 × 13 × 29 × 26687
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121998
Product of the distinct prime numbers
The prime factorization of 20121998 is 2 × 13 × 29 × 26687.
Since it has a total of 4 prime factors.
9 , 2 , 75 , 80 , 221 , 382 , 6822 , 9056 , 51007 , 27631 , 844990 , 551268 , 8784489 , 6434662 , 20915461 , 74528298 , 509099214 , 87251310 , 6736668422 , 5458245563
n×2
40243996
n×3
60365994
n×4
80487992
n×5
100609990
n÷2
10060999
n÷3
6707332.6666667
n÷3
5030499.5
n÷5
4024399.6
n2
404894803512004
n3
8.1472924264789E+21
n4
1.6393980191102E+29
n5
3.298796366174E+36
2 √n
4485.7550089143
3 √n
271.99256575702
4 √n
66.975779270676
5 √n
28.889113842018
1 , 2 , 13 , 26 , 29 , 58 , 377 , 754 , 26687 , 53374 , 346931 , 693862 , 773923 , 1547846 , 10060999 , 20121998
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
-20121997
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 20121998 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121998) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100110001110
3
Ternary
1101212022012012
4
Quaternary
1030300212032
5
Quinary
20122400443
6
Senary
1555141222
8
Octal
114604616
10
Decimal
20121998
12
Duodecimal
68a4812
16
Hexadecimal
133098e
20
Vigesimal
65f4ji
36
Base36
bza8e
md5
f6f547cdd2ab0ed0854cab5e84eefdc1
sha1
b0e8571286fa0a87c80808d90197787d439603c6
sha256
ea78678c4a606dbf2c75795d235f731edc6a8cb87fd2b1c33af0d7267042e188
sha512
bcf74d5a2f25d0ee35023104f0c73050a05b4f813abac26c89598cd5d9af5f7169f1dcda3e7e901b36ff1f3e8f0cebdf4d80868cb006b78dac12b7db4cb3543e
ripemd-160
01758a0f406b5ef0f6a33c7a0d8160b7e2c97379
Diameter
40243996
Circumference
126430242.1847
Area
1.27201454019E+15
Volume
3.4127298711565E+22
Surface area
5.08805816076E+15
Circumference
126430242.1847
Perimeter
80487992
Area
404894803512004
Diagonal
28456802.473644
Surface area
2429368821072024
Volume
8.1472924264789E+21
Space diagonal
34852322.885799
Perimeter
60365994
Area
1.7532459285085E+14
Altitude
17426161.4429
Surface area
1.7532459285085E+14
Volume
9.6016762051218E+20
Height
9485600.8245481