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

66991639 (number)

66991639 is an odd 8-digits composite number following 66991638 and preceding 66991640. In scientific notation, it is written as 6.6991639 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 56216640 positive integers (up to 66991639) that are relatively prime to 66991639.

Interesting facts

66991639 has 8 divisors, whose sum is 78703632
The reverse of 66991639 is 93619966
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4

Name

Name	sixty-six million nine hundred ninety-one thousand six hundred thirty-nine

Notation

Scientific notation	6.6991639 × 10^7
Engineering notation	6.6991639 × 10^6

Prime Factorization of 66991639

Prime Factorization 13 × 11 × 468473

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	66991639	Product of the distinct prime numbers

The prime factorization of 66991639 is 13 × 11 × 468473. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 74, 94, 291, 880, 9287, 7807, 97098, 62857, 581034, 534074, 5184712, 9654376, 24028305, 12501066, 277527102, 879389894, 3836729332, 2578078259

Basic calculations (n = 66991639)

Multiplication

n×y

n×2	133983278
n×3	200974917
n×4	267966556
n×5	334958195

Division

n÷y

n÷2	33495819.5
n÷3	22330546.333333
n÷3	16747909.75
n÷5	13398327.8

Exponentiation

n^y

n²	4487879695906321
n³	3.0065041646359E+23
n⁴	2.0141064164928E+31
n⁵	1.3492828996127E+39

Nth Root

^y√n

²√n	8184.8420265757
³√n	406.13791451405
⁴√n	90.470116760042
⁵√n	36.745496565138

Divisors of 66991639

1, 11, 13, 143, 468473, 5153203, 6090149, 66991639

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	-66991638	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 66991639 can be divided by 8 positive divisors. The sum of these divisors (counting 66991639) is 1, the average is 0.125.

Base conversion 66991639

Base	System	Value
2	Binary	11111111100011011000010111
3	Ternary	11200001112020211
4	Quaternary	3333203120113
5	Quinary	114122213024
6	Senary	10351510251
8	Octal	377433027
10	Decimal	66991639
12	Duodecimal	1a528387
16	Hexadecimal	3fe3617
20	Vigesimal	10idj1j
36	Base36	13vv2v

Cryptographic Hash Functions

md5	3a12c260aa00b70a0005254b8d449843
sha1	67f63405b9da8b9a615a7d577137dd7ad6ccf29c
sha256	109383e0a592590e0811302c1919e14cf1a0ed2f0b12668363ae494bb4c6177d
sha512	ee8ea0524ce305ef67ca3d83bf59273abf113923f1dc3dcf92ded7c4a7442e5fe92fca65833d6f4a87099d358693f8f7a4849bf3bb03e2418d196d63b7930181
ripemd-160	e3ff1a792046e495babf92e23bf7b4d4cf6c9a51

66991639 as geometric shapes

Circle

Radius = n

Diameter	133983278
Circumference	420920881.86868
Area	1.4099089882854E+16

Sphere

Radius = n

Volume	1.2593615195476E+24
Surface area	5.6396359531416E+16
Circumference	420920881.86868

Square

Length = n

Perimeter	267966556
Area	4487879695906321
Diagonal	94740484.439402

Cube

Length = n

Surface area	26927278175437926
Volume	3.0065041646359E+23
Space diagonal	116032922.43031

Equilateral Triangle

Length = n

Perimeter	200974917
Area	1.9433089128916E+15
Altitude	58016461.215156

Triangular Pyramid

Length = n

Surface area	1.9433089128916E+15
Volume	3.543199137466E+22
Height	31580161.479801