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

19985991 (number)

19985991 is an odd 8-digits composite number following 19985990 and preceding 19985992. In scientific notation, it is written as 1.9985991 × 10^7. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 13323992 positive integers (up to 19985991) that are relatively prime to 19985991.

Interesting facts

19985991 has 4 divisors, whose sum is 26647992
The reverse of 19985991 is 19958991
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6

Name

Name	nineteen million nine hundred eighty-five thousand nine hundred ninety-one

Notation

Scientific notation	1.9985991 × 10^7
Engineering notation	1.9985991 × 10^6

Prime Factorization of 19985991

Prime Factorization 3 × 6661997

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19985991	Product of the distinct prime numbers

The prime factorization of 19985991 is 3 × 6661997. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 10, 28, 88, 956, 865, 6443, 4116, 1881, 39610, 379465, 28626, 5491619, 7631098, 83135177, 8909402, 440757689, 753005407, 5932488180, 5590759485

Basic calculations (n = 19985991)

Multiplication

n×y

n×2	39971982
n×3	59957973
n×4	79943964
n×5	99929955

Division

n÷y

n÷2	9992995.5
n÷3	6661997
n÷3	4996497.75
n÷5	3997198.2

Exponentiation

n^y

n²	399439836252081
n³	7.9832009723756E+21
n⁴	1.5955218278509E+29
n⁵	3.1888084891731E+36

Nth Root

^y√n

²√n	4470.569426818
³√n	271.37836972891
⁴√n	66.862316941742
⁵√n	28.84995482854

Divisors of 19985991

1, 3, 6661997, 19985991

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	-19985990	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 19985991 can be divided by 4 positive divisors. The sum of these divisors (counting 19985991) is 1, the average is 0.25.

Base conversion 19985991

Base	System	Value
2	Binary	1001100001111011001000111
3	Ternary	1101121101121220
4	Quaternary	1030033121013
5	Quinary	20104022431
6	Senary	1552211423
8	Octal	114173107
10	Decimal	19985991
12	Duodecimal	6839b73
16	Hexadecimal	130f647
20	Vigesimal	64i4jb
36	Base36	bwdaf

Cryptographic Hash Functions

md5	9bc47aecc7f47bdbe293865886df052e
sha1	67ac73c7ecac6cc37f045440bdd782ff03ddd574
sha256	f5f2d8d73090bc54009c648b7fb3748c5fa89d66ef9501eea46e6f34b810dec9
sha512	ba476780336c9d96da3162b6d45e737bc6f6b1c240ed77c39d85c8e8a434f253e0a18c27c70339f4e5b0b2535ac7a9d1fcbad700c6d30a4b17188e2ab4e3a32a
ripemd-160	8ed16baf3e71aaa7436e5d865d68f6920b25655d

19985991 as geometric shapes

Circle

Radius = n

Diameter	39971982
Circumference	125575685.00062
Area	1.2548772551206E+15

Sphere

Radius = n

Volume	3.3439954035928E+22
Surface area	5.0195090204826E+15
Circumference	125575685.00062

Square

Length = n

Perimeter	79943964
Area	399439836252081
Diagonal	28264459.529667

Cube

Length = n

Surface area	2396639017512486
Volume	7.9832009723756E+21
Space diagonal	34616751.851614

Equilateral Triangle

Length = n

Perimeter	59957973
Area	1.729625227389E+14
Altitude	17308375.925807

Triangular Pyramid

Length = n

Surface area	1.729625227389E+14
Volume	9.408292571903E+20
Height	9421486.5098889