Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20131945 (number)

20131945 is an odd 8-digits composite number following 20131944 and preceding 20131946. In scientific notation, it is written as 2.0131945 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 15550080 positive integers (up to 20131945) that are relatively prime to 20131945.

Interesting facts

20131945 has 4 divisors, whose sum is 20270932
The reverse of 20131945 is 54913102
Previous prime number is 145

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty million one hundred thirty-one thousand nine hundred forty-five

Notation

Scientific notation	2.0131945 × 10^7
Engineering notation	2.0131945 × 10^6

Prime Factorization of 20131945

Prime Factorization 145 × 138841

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20131945	Product of the distinct prime numbers

The prime factorization of 20131945 is 145 × 138841. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 7, 52, 887, 144, 5014, 3583, 65281, 36488, 689614, 381505, 4636809, 6199677, 43529831, 60374143, 248731662, 251735614, 6131982311, 2531016695

Basic calculations (n = 20131945)

Multiplication

n×y

n×2	40263890
n×3	60395835
n×4	80527780
n×5	100659725

Division

n÷y

n÷2	10065972.5
n÷3	6710648.3333333
n÷3	5032986.25
n÷5	4026389

Exponentiation

n^y

n²	405295209483025
n³	8.1593808660757E+21
n⁴	1.6426420682989E+29
n⁵	3.306957977368E+36

Nth Root

^y√n

²√n	4486.8636038997
³√n	272.0373768201
⁴√n	66.984054848148
⁵√n	28.891969455178

Divisors of 20131945

1, 145, 138841, 20131945

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	-20131944	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 20131945 can be divided by 4 positive divisors. The sum of these divisors (counting 20131945) is 1, the average is 0.25.

Base conversion 20131945

Base	System	Value
2	Binary	1001100110011000001101001
3	Ternary	1101212210211121
4	Quaternary	1030303001221
5	Quinary	20123210240
6	Senary	1555255241
8	Octal	114630151
10	Decimal	20131945
12	Duodecimal	68aa521
16	Hexadecimal	1333069
20	Vigesimal	65g9h5
36	Base36	bzhwp

Cryptographic Hash Functions

md5	818df73f0374bf55c1f51d99ecece087
sha1	89f202cef2257fc5ef2a991bf1cac1d8ce0dc3bb
sha256	bafd2cf547ef95d2f91fa22560ddbb0dff445013b9ee96edc273070023f72907
sha512	e9f3bf958cce017750706e6fd1eab861853a4194a1bae5bfe59b63f275337dd1be754eafc157e97ebe620a9884621eb4e32a25dc02f87b4e7a40e57bff857754
ripemd-160	b4489f396d3b6b85ad0f526da0b9c1e7dd23c805

20131945 as geometric shapes

Circle

Radius = n

Diameter	40263890
Circumference	126492741.02895
Area	1.273272452647E+15

Sphere

Radius = n

Volume	3.417793464894E+22
Surface area	5.093089810588E+15
Circumference	126492741.02895

Square

Length = n

Perimeter	80527780
Area	405295209483025
Diagonal	28470869.655949

Cube

Length = n

Surface area	2431771256898150
Volume	8.1593808660757E+21
Space diagonal	34869551.595182

Equilateral Triangle

Length = n

Perimeter	60395835
Area	1.7549797372222E+14
Altitude	17434775.797591

Triangular Pyramid

Length = n

Surface area	1.7549797372222E+14
Volume	9.6159225678099E+20
Height	9490289.8853164