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

66989905 (number)

66989905 is an odd 8-digits composite number following 66989904 and preceding 66989906. In scientific notation, it is written as 6.6989905 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 53591920 positive integers (up to 66989905) that are relatively prime to 66989905.

Interesting facts

66989905 has 4 divisors, whose sum is 80387892
The reverse of 66989905 is 50998966
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7

Name

Name	sixty-six million nine hundred eighty-nine thousand nine hundred five

Notation

Scientific notation	6.6989905 × 10^7
Engineering notation	6.6989905 × 10^6

Prime Factorization of 66989905

Prime Factorization 5 × 13397981

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	66989905	Product of the distinct prime numbers

The prime factorization of 66989905 is 5 × 13397981. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 62, 78, 69, 635, 8315, 6442, 73343, 25429, 703908, 75053, 1137582, 3620189, 10115640, 90920874, 572715461, 21743487, 721065935, 9081268346

Basic calculations (n = 66989905)

Multiplication

n×y

n×2	133979810
n×3	200969715
n×4	267959620
n×5	334949525

Division

n÷y

n÷2	33494952.5
n÷3	22329968.333333
n÷3	16747476.25
n÷5	13397981

Exponentiation

n^y

n²	4487647371909025
n³	3.0062707111769E+23
n⁴	2.0138978934602E+31
n⁵	1.349108285626E+39

Nth Root

^y√n

²√n	8184.7360983724
³√n	406.1344103493
⁴√n	90.469531326145
⁵√n	36.745306340353

Divisors of 66989905

1, 5, 13397981, 66989905

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	-66989904	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 66989905 can be divided by 4 positive divisors. The sum of these divisors (counting 66989905) is 1, the average is 0.25.

Base conversion 66989905

Base	System	Value
2	Binary	11111111100010111101010001
3	Ternary	11200001102212121
4	Quaternary	3333202331101
5	Quinary	114122134110
6	Senary	10351454241
8	Octal	377427521
10	Decimal	66989905
12	Duodecimal	1a527381
16	Hexadecimal	3fe2f51
20	Vigesimal	10idef5
36	Base36	13vtqp

Cryptographic Hash Functions

md5	61cde581e7bf55c4e6a43f96f7c329fa
sha1	fd13cb4706f6469121bf4cb1727a32535418ebc6
sha256	4be4e31a0a8cbd36fa41bf1be000ee55c3c2e5a63694c80ff83ce491e3b4ccd9
sha512	fffcc478ea20f33ccd109d9e4b89316d9a501b6ba4d06cbcf0fdc1d5c654f78e54f31adc5782d6988b41888e7353fec56f75dd0d070da7ae2e1c3122b6196aea
ripemd-160	dfac0f046d549f84c5cd29d60a399c5065300d2a

66989905 as geometric shapes

Circle

Radius = n

Diameter	133979810
Circumference	420909986.82536
Area	1.4098360015491E+16

Sphere

Radius = n

Volume	1.2592637307914E+24
Surface area	5.6393440061964E+16
Circumference	420909986.82536

Square

Length = n

Perimeter	267959620
Area	4487647371909025
Diagonal	94738032.193085

Cube

Length = n

Surface area	26925884231454150
Volume	3.0062707111769E+23
Space diagonal	116029919.05421

Equilateral Triangle

Length = n

Perimeter	200969715
Area	1.9432083136498E+15
Altitude	58014959.527106

Triangular Pyramid

Length = n

Surface area	1.9432083136498E+15
Volume	3.5429240099261E+22
Height	31579344.064362