20191231 is an odd 8-digits prime number following 20191230
and preceding 20191232 . In scientific notation, it is written as 2.0191231 × 10^7.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 20191230 positive integers (up to 20191231) that are relatively prime to 20191231.
20191231 has 2 divisors, whose sum is 20191232
The reverse of 20191231 is 13219102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred ninety-one thousand two hundred thirty-one
Scientific notation
2.0191231 × 10^7
Engineering notation
2.0191231 × 10^6
Prime Factorization
20191231
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20191231
Product of the distinct prime numbers
The prime factorization of 20191231 is 20191231.
Since it has a total of 1 prime factors.
9 , 10 , 79 , 80 , 662 , 476 , 1702 , 9691 , 55335 , 39212 , 503966 , 216820 , 2739828 , 7185382 , 22758512 , 89932037 , 335138365 , 942874846 , 352939526 , 2985976935
n×2
40382462
n×3
60573693
n×4
80764924
n×5
100956155
n÷2
10095615.5
n÷3
6730410.3333333
n÷3
5047807.75
n÷5
4038246.2
n2
407685809295361
n3
8.2316783509046E+21
n4
1.6620771910081E+29
n5
3.3559384503476E+36
2 √n
4493.4653665072
3 √n
272.30415352967
4 √n
67.033315347723
5 √n
28.908966075853
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20191232
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10095616
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4493.4654777799
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999009471
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191231 can be divided by 2 positive divisors.
The sum of these divisors (counting 20191231) is 20191232, the average is 10095616.
Base
System
Value
2
Binary
1001101000001011111111111
3
Ternary
1101222211011101
4
Quaternary
1031001133333
5
Quinary
20132104411
6
Senary
2000433531
8
Octal
115013777
10
Decimal
20191231
12
Duodecimal
69188a7
16
Hexadecimal
13417ff
20
Vigesimal
663i1b
36
Base36
c0rnj
md5
637cec19f898329e790ef99fd6f6aad6
sha1
a13c657ec1b7eb07c47353cf7ed8f0eaaa2cca76
sha256
cf3e69315898d7cf968b145f4f9534d075076a423f657c0dae5bf2a1e4e876aa
sha512
7130d25e7fa85de3169083da7b0c36069fa64480ed2dd6efa8915c24adffb569842bc1d1154d85d74cca8dd0e4ed401ad8584ac872aa71e7ff430ffc55a03a0b
ripemd-160
5d385241a5e89bb18caf68cd7c9d5b6cca576ba7
Diameter
40382462
Circumference
126865245.95307
Area
1.2807827434551E+15
Volume
3.4480773645221E+22
Surface area
5.1231309738205E+15
Circumference
126865245.95307
Perimeter
80764924
Area
407685809295361
Diagonal
28554712.721208
Surface area
2446114855772166
Volume
8.2316783509046E+21
Space diagonal
34972237.95936
Perimeter
60573693
Area
1.765331338061E+14
Altitude
17486118.97968
Surface area
1.765331338061E+14
Volume
9.7011259707852E+20
Height
9518237.573736