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

19997891 (number)

19997891 is an odd 8-digits composite number following 19997890 and preceding 19997892. In scientific notation, it is written as 1.9997891 × 10^7. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 19893000 positive integers (up to 19997891) that are relatively prime to 19997891.

Interesting facts

19997891 has 4 divisors, whose sum is 20102784
The reverse of 19997891 is 19879991
Previous prime number is 191

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8

Name

Name	nineteen million nine hundred ninety-seven thousand eight hundred ninety-one

Notation

Scientific notation	1.9997891 × 10^7
Engineering notation	1.9997891 × 10^6

Prime Factorization of 19997891

Prime Factorization 191 × 104701

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19997891	Product of the distinct prime numbers

The prime factorization of 19997891 is 191 × 104701. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 60, 60, 72, 233, 6425, 9711, 72677, 19966, 265433, 419893, 635025, 4088491, 34775160, 68404275, 623124210, 981975109, 4129206816, 6307740335

Basic calculations (n = 19997891)

Multiplication

n×y

n×2	39995782
n×3	59993673
n×4	79991564
n×5	99989455

Division

n÷y

n÷2	9998945.5
n÷3	6665963.6666667
n÷3	4999472.75
n÷5	3999578.2

Exponentiation

n^y

n²	399915644447881
n³	7.9974694668635E+21
n⁴	1.5993252267416E+29
n⁵	3.198313155793E+36

Nth Root

^y√n

²√n	4471.9001554149
³√n	271.43222014618
⁴√n	66.872267461295
⁵√n	28.853389561655

Divisors of 19997891

1, 191, 104701, 19997891

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	-19997890	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 19997891 can be divided by 4 positive divisors. The sum of these divisors (counting 19997891) is 1, the average is 0.25.

Base conversion 19997891

Base	System	Value
2	Binary	1001100010010010011000011
3	Ternary	1101121222221122
4	Quaternary	1030102103003
5	Quinary	20104413031
6	Senary	1552342455
8	Octal	114222303
10	Decimal	19997891
12	Duodecimal	6844a2b
16	Hexadecimal	13124c3
20	Vigesimal	64jeeb
36	Base36	bwmgz

Cryptographic Hash Functions

md5	6608f309e04dbf790c9cd021f4bce186
sha1	8f44baf261ea1afb20539758f9c2d319ff7ae42f
sha256	26bae77b5fe1b0a09bf954434041ceb293d2ce7b3f8f8199f61caf3133523347
sha512	fbc6498e7c88d0a0aae4a7ad6aa559c74d03fd02d62d7905c44ed070644b4e6ba0fca1c91037c3a45f34e1e31001aef3bcae816c2a607780d07ebbc8d079c114
ripemd-160	ffcb2a2eb73e025096782b628b09822e551d4bc3

19997891 as geometric shapes

Circle

Radius = n

Diameter	39995782
Circumference	125650454.90578
Area	1.2563720506531E+15

Sphere

Radius = n

Volume	3.3499721765876E+22
Surface area	5.0254882026124E+15
Circumference	125650454.90578

Square

Length = n

Perimeter	79991564
Area	399915644447881
Diagonal	28281288.671059

Cube

Length = n

Surface area	2399493866687286
Volume	7.9974694668635E+21
Space diagonal	34637363.256224

Equilateral Triangle

Length = n

Perimeter	59993673
Area	1.7316855373135E+14
Altitude	17318681.628112

Triangular Pyramid

Length = n

Surface area	1.7316855373135E+14
Volume	9.4251081539192E+20
Height	9427096.2236863