20145998 is an even 8-digits composite number following 20145997
and preceding 20145999 . In scientific notation, it is written as 2.0145998 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10072998 positive integers (up to 20145998) that are relatively prime to 20145998.
20145998 has 4 divisors, whose sum is 30219000
The reverse of 20145998 is 89954102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred forty-five thousand nine hundred ninety-eight
Scientific notation
2.0145998 × 10^7
Engineering notation
2.0145998 × 10^6
Prime Factorization
2 × 10072999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145998
Product of the distinct prime numbers
The prime factorization of 20145998 is 2 × 10072999.
Since it has a total of 2 prime factors.
5 , 9 , 90 , 11 , 252 , 40 , 459 , 7439 , 13129 , 20780 , 774291 , 96129 , 3170670 , 5512720 , 11384128 , 26332718 , 205713499 , 528011378 , 9238313940 , 3083937864
n×2
40291996
n×3
60437994
n×4
80583992
n×5
100729990
n÷2
10072999
n÷3
6715332.6666667
n÷3
5036499.5
n÷5
4029199.6
n2
405861235416004
n3
8.1764796369683E+21
n4
1.6472334241341E+29
n5
3.3185161268138E+36
2 √n
4488.4293466646
3 √n
272.10066019176
4 √n
66.995741257669
5 √n
28.896001907348
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
-20145997
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 20145998 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145998) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110011101001110
3
Ternary
1101220112010002
4
Quaternary
1030312131032
5
Quinary
20124132443
6
Senary
1555444302
8
Octal
114663516
10
Decimal
20145998
12
Duodecimal
68b6692
16
Hexadecimal
133674e
20
Vigesimal
65i4ji
36
Base36
bzsr2
md5
725d2139e3321425efdbdedf7a2264f4
sha1
1a6465a969eb91e91cd35aecef9ed3f03723d4c9
sha256
71a4bf9bc1bf9ee6cf4e6f4eb4839e92c88b503a6304af516e4658dd51258e2e
sha512
06f3c2da60f5609fea48b1785001c04508a5c5522b6751fc8175ad3b88b86049abed83d05b9cde86eac2bb1e9fc98756015423b12b6815e421f0a436b5375cd9
ripemd-160
8c718d6d4d920af2927f5451a85a539a94973909
Diameter
40291996
Circumference
126581038.63207
Area
1.2750506755598E+15
Volume
3.4249557812968E+22
Surface area
5.1002027022392E+15
Circumference
126581038.63207
Perimeter
80583992
Area
405861235416004
Diagonal
28490743.599141
Surface area
2435167412496024
Volume
8.1764796369683E+21
Space diagonal
34893892.105181
Perimeter
60437994
Area
1.757430701408E+14
Altitude
17446946.05259
Surface area
1.757430701408E+14
Volume
9.6360736625567E+20
Height
9496914.5330471