19998157 is an odd 8-digits composite number following 19998156
and preceding 19998158 . In scientific notation, it is written as 1.9998157 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 19912096 positive integers (up to 19998157) that are relatively prime to 19998157.
19998157 has 4 divisors, whose sum is 20084220
The reverse of 19998157 is 75189991
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred ninety-eight thousand one hundred fifty-seven
Scientific notation
1.9998157 × 10^7
Engineering notation
1.9998157 × 10^6
Prime Factorization
233 × 85829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19998157
Product of the distinct prime numbers
The prime factorization of 19998157 is 233 × 85829.
Since it has a total of 2 prime factors.
3 , 1 , 50 , 51 , 691 , 672 , 50 , 2076 , 82967 , 50398 , 745810 , 352195 , 4007092 , 8375637 , 90266499 , 11219298 , 547697228 , 954760031 , 4157518737 , 6740620085
n×2
39996314
n×3
59994471
n×4
79992628
n×5
99990785
n÷2
9999078.5
n÷3
6666052.3333333
n÷3
4999539.25
n÷5
3999631.4
n2
399926283396649
n3
7.9977886037927E+21
n4
1.5994103215146E+29
n5
3.1985258717069E+36
2 √n
4471.9298965883
3 √n
271.43342361726
4 √n
66.872489833924
5 √n
28.853466319356
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
-19998156
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 19998157 can be divided by 4 positive divisors.
The sum of these divisors (counting 19998157) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010010111001101
3
Ternary
1101122000022111
4
Quaternary
1030102113031
5
Quinary
20104420112
6
Senary
1552344021
8
Octal
114222715
10
Decimal
19998157
12
Duodecimal
6845011
16
Hexadecimal
13125cd
20
Vigesimal
64jf7h
36
Base36
bwmod
md5
101eea52175f9e2e165a684a35a6ef6c
sha1
9c0800b82993a96e1050828cf987b679dcad43f7
sha256
c96e202ebf8f27132ac5cc2efceff0e6cd33bbec1f790c4431d087c0531fcfbd
sha512
fc0efc7077d82762aa327cab000c01c538e3f5a00781527563e52e3194e6984e90a29340e07dfd5479bf23d037813f38720e7a6a3f7ea6f1a15a9dc8c6f1990f
ripemd-160
dd2b64ae4dfe43a25dbc3aa2bdb3502578e26230
Diameter
39996314
Circumference
125652126.23307
Area
1.2564054738964E+15
Volume
3.3501058563519E+22
Surface area
5.0256218955855E+15
Circumference
125652126.23307
Perimeter
79992628
Area
399926283396649
Diagonal
28281664.851866
Surface area
2399557700379894
Volume
7.9977886037927E+21
Space diagonal
34637823.981739
Perimeter
59994471
Area
1.731731605313E+14
Altitude
17318911.99087
Surface area
1.731731605313E+14
Volume
9.4254842603972E+20
Height
9427221.6172888