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

19989987 (number)

19989987 is an odd 8-digits composite number following 19989986 and preceding 19989988. In scientific notation, it is written as 1.9989987 × 10^7. The sum of its digits is 60. It has a total of 2 prime factors and 4 positive divisors. There are 13326656 positive integers (up to 19989987) that are relatively prime to 19989987.

Interesting facts

19989987 has 4 divisors, whose sum is 26653320
The reverse of 19989987 is 78998991
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 60
Digital Root 6

Name

Name	nineteen million nine hundred eighty-nine thousand nine hundred eighty-seven

Notation

Scientific notation	1.9989987 × 10^7
Engineering notation	1.9989987 × 10^6

Prime Factorization of 19989987

Prime Factorization 3 × 6663329

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19989987	Product of the distinct prime numbers

The prime factorization of 19989987 is 3 × 6663329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 68, 65, 122, 970, 133, 1942, 45456, 74255, 815192, 869471, 1965299, 1629817, 29543675, 39435795, 150023578, 927189092, 1405420468, 5641184214

Basic calculations (n = 19989987)

Multiplication

n×y

n×2	39979974
n×3	59969961
n×4	79959948
n×5	99949935

Division

n÷y

n÷2	9994993.5
n÷3	6663329
n÷3	4997496.75
n÷5	3997997.4

Exponentiation

n^y

n²	399599580260169
n³	7.9879904146062E+21
n⁴	1.596798245441E+29
n⁵	3.1919976167989E+36

Nth Root

^y√n

²√n	4471.0163274137
³√n	271.39645499173
⁴√n	66.865658804903
⁵√n	28.851108388557

Divisors of 19989987

1, 3, 6663329, 19989987

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	-19989986	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 19989987 can be divided by 4 positive divisors. The sum of these divisors (counting 19989987) is 1, the average is 0.25.

Base conversion 19989987

Base	System	Value
2	Binary	1001100010000010111100011
3	Ternary	1101121121002220
4	Quaternary	1030100113203
5	Quinary	20104134422
6	Senary	1552242123
8	Octal	114202743
10	Decimal	19989987
12	Duodecimal	6840343
16	Hexadecimal	13105e3
20	Vigesimal	64iej7
36	Base36	bwgdf

Cryptographic Hash Functions

md5	a9041e22ba0042edd9c4d368d3ad0775
sha1	16ff87dbb04ea0450220030bfe2db87c64dabc3d
sha256	a683c433d6eb784023267f72586abec0300e80572743019067ecd48cca968767
sha512	14bbd6c46317bf339f28d94148a1e33968ca8ced3fec69ddfbf7dbc97d4b9585752e24ff3df87998b6a4d712f17ad502018c5de53f1a7e27fdd681b572375cb7
ripemd-160	3aea26ac93dd54809bf7dfa1e69da757685013af

19989987 as geometric shapes

Circle

Radius = n

Diameter	39979974
Circumference	125600792.60911
Area	1.2553791057229E+15

Sphere

Radius = n

Volume	3.346001600463E+22
Surface area	5.0215164228916E+15
Circumference	125600792.60911

Square

Length = n

Perimeter	79959948
Area	399599580260169
Diagonal	28270110.727062

Cube

Length = n

Surface area	2397597481561014
Volume	7.9879904146062E+21
Space diagonal	34623673.126641

Equilateral Triangle

Length = n

Perimeter	59969961
Area	1.7303169392345E+14
Altitude	17311836.563321

Triangular Pyramid

Length = n

Surface area	1.7303169392345E+14
Volume	9.413936983702E+20
Height	9423370.242354