20149991 is an odd 8-digits composite number following 20149990
and preceding 20149992 . In scientific notation, it is written as 2.0149991 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20138184 positive integers (up to 20149991) that are relatively prime to 20149991.
20149991 has 4 divisors, whose sum is 20161800
The reverse of 20149991 is 19994102
Previous prime number is 2069
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred forty-nine thousand nine hundred ninety-one
Scientific notation
2.0149991 × 10^7
Engineering notation
2.0149991 × 10^6
Prime Factorization
2069 × 9739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20149991
Product of the distinct prime numbers
The prime factorization of 20149991 is 2069 × 9739.
Since it has a total of 2 prime factors.
8 , 2 , 44 , 16 , 122 , 407 , 2013 , 9166 , 57892 , 42170 , 889440 , 965608 , 1760333 , 3658345 , 54962212 , 44671436 , 536843653 , 700080570 , 4086057914 , 1480957376
n×2
40299982
n×3
60449973
n×4
80599964
n×5
100749955
n÷2
10074995.5
n÷3
6716663.6666667
n÷3
5037497.75
n÷5
4029998.2
n2
406022137300081
n3
8.1813424123974E+21
n4
1.6485397597773E+29
n5
3.3218061322654E+36
2 √n
4488.8741350143
3 √n
272.11863607232
4 √n
66.999060702477
5 √n
28.89714727219
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
-20149990
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 20149991 can be divided by 4 positive divisors.
The sum of these divisors (counting 20149991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111011011100111
3
Ternary
1101220201120222
4
Quaternary
1030313123213
5
Quinary
20124244431
6
Senary
1555514555
8
Octal
114673347
10
Decimal
20149991
12
Duodecimal
68b8a5b
16
Hexadecimal
13376e7
20
Vigesimal
65iejb
36
Base36
bzvtz
md5
909603f3603211c824e690873f9ca71f
sha1
e1ae5ec2d64836c851122201dab0a6abed6fbba0
sha256
656cb5853811317dca54141edc09a3e6c2e0a2e334ade45ec3b19b4954c1db0b
sha512
9c88fb090c744004e3ac5d6ae45cb9328d25eb7b9e9d2d8250db5251aba5d88cb1a3c66420941d667bf1bc914fe911022d4a2b922cfc58a69b45c74121cffbc0
ripemd-160
0bd61125605dc0c8752e0bcbd6ce2aadd565dfd8
Diameter
40299982
Circumference
126606127.391
Area
1.2755561637368E+15
Volume
3.4269926959054E+22
Surface area
5.102224654947E+15
Circumference
126606127.391
Perimeter
80599964
Area
406022137300081
Diagonal
28496390.553896
Surface area
2436132823800486
Volume
8.1813424123974E+21
Space diagonal
34900808.184056
Perimeter
60449973
Area
1.7581274270036E+14
Altitude
17450404.092028
Surface area
1.7581274270036E+14
Volume
9.6418044983588E+20
Height
9498796.8512986