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

1987989 (number)

1987989 is an odd 7-digits composite number following 1987988 and preceding 1987990. In scientific notation, it is written as 1.987989 × 10^6. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 1255536 positive integers (up to 1987989) that are relatively prime to 1987989.

Interesting facts

1987989 has 8 divisors, whose sum is 2790240
The reverse of 1987989 is 9897891
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 51
Digital Root 6

Name

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

Notation

Scientific notation	1.987989 × 10^6
Engineering notation	1.987989 × 10^6

Prime Factorization of 1987989

Prime Factorization 3 × 19 × 34877

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	1987989	Product of the distinct prime numbers

The prime factorization of 1987989 is 3 × 19 × 34877. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 86, 64, 89, 965, 4097, 4451, 89933, 33689, 271006, 339181, 8393286, 873849, 21740089, 47441227, 743536010, 824335923, 6749090233, 5781678634

Basic calculations (n = 1987989)

Multiplication

n×y

n×2	3975978
n×3	5963967
n×4	7951956
n×5	9939945

Division

n÷y

n÷2	993994.5
n÷3	662663
n÷3	496997.25
n÷5	397597.8

Exponentiation

n^y

n²	3952100264121
n³	7856731851969642669
n⁴	1.5619096497665E+25
n⁵	3.1050592027297E+31

Nth Root

^y√n

²√n	1409.9606377484
³√n	125.7393832099
⁴√n	37.549442575735
⁵√n	18.183722515124

Divisors of 1987989

1, 3, 19, 57, 34877, 104631, 662663, 1987989

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1987988	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1987989 can be divided by 8 positive divisors. The sum of these divisors (counting 1987989) is 1, the average is 0.125.

Base conversion 1987989

Base	System	Value
2	Binary	111100101010110010101
3	Ternary	10202000000020
4	Quaternary	13211112111
5	Quinary	1002103424
6	Senary	110335353
8	Octal	7452625
10	Decimal	1987989
12	Duodecimal	7ba559
16	Hexadecimal	1e5595
20	Vigesimal	c89j9
36	Base36	16lxx

Cryptographic Hash Functions

md5	8ff2cdfbdf098262ee144e283995627e
sha1	18ae4bac54a0ec5bdf0d76e7ba1bbca2ac52f185
sha256	90c91059ea15b7cfea122bcda83d71b014e2bc5e43565371bb662425c9d873ec
sha512	50db61a443e33747f56dcebedb1ebab1a2bf53c83901db892bb77b9f3bee29885f9b799acb49fe49c19b8fac46c829c0081b881ef162415fee6a277530912249
ripemd-160	9349ed3e13c76441e358935b5cc44a8f67ce25ad

1987989 as geometric shapes

Circle

Radius = n

Diameter	3975978
Circumference	12490903.275635
Area	12415889156013

Sphere

Radius = n

Volume	3.2910201423164E+19
Surface area	49663556624051
Circumference	12490903.275635

Square

Length = n

Perimeter	7951956
Area	3952100264121
Diagonal	2811441.0056485

Cube

Length = n

Surface area	23712601584726
Volume	7856731851969642669
Space diagonal	3443297.952888

Equilateral Triangle

Length = n

Perimeter	5963967
Area	1711309613516
Altitude	1721648.976444

Triangular Pyramid

Length = n

Surface area	1711309613516
Volume	9.2592472841535E+17
Height	937147.00188284