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

66561388 (number)

66561388 is an even 8-digits composite number following 66561387 and preceding 66561389. In scientific notation, it is written as 6.6561388 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors. There are 33280692 positive integers (up to 66561388) that are relatively prime to 66561388.

Interesting facts

66561388 has 6 divisors, whose sum is 116482436
The reverse of 66561388 is 88316566
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	sixty-six million five hundred sixty-one thousand three hundred eighty-eight

Notation

Scientific notation	6.6561388 × 10^7
Engineering notation	6.6561388 × 10^6

Prime Factorization of 66561388

Prime Factorization 2 × 2 × 16640347

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	33280694	Product of the distinct prime numbers

The prime factorization of 66561388 is 2 × 2 × 16640347. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 1, 6, 90, 20, 58, 4006, 8376, 65889, 88361, 437874, 294886, 5723076, 7973768, 2735531, 78312199, 308294564, 286218113, 5199674168, 159227104

Basic calculations (n = 66561388)

Multiplication

n×y

n×2	133122776
n×3	199684164
n×4	266245552
n×5	332806940

Division

n÷y

n÷2	33280694
n÷3	22187129.333333
n÷3	16640347
n÷5	13312277.6

Exponentiation

n^y

n²	4430418372486544
n³	2.9489479629341E+23
n⁴	1.9628606955266E+31
n⁵	1.306507323449E+39

Nth Root

^y√n

²√n	8158.5162866786
³√n	405.26657854625
⁴√n	90.324505460471
⁵√n	36.698175558598

Divisors of 66561388

1, 2, 4, 16640347, 33280694, 66561388

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-66561387	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 66561388 can be divided by 6 positive divisors. The sum of these divisors (counting 66561388) is 1, the average is 0.16666666666667.

Base conversion 66561388

Base	System	Value
2	Binary	11111101111010010101101100
3	Ternary	11122020200001121
4	Quaternary	3331322111230
5	Quinary	114014431023
6	Senary	10334350324
8	Octal	375722554
10	Decimal	66561388
12	Duodecimal	1a35b3a4
16	Hexadecimal	3f7a56c
20	Vigesimal	10g0398
36	Base36	13mn3g

Cryptographic Hash Functions

md5	a4a0bf2c21339a4762b940e4ca978ed2
sha1	2ca8a59bd350df210234054c2cc28b779a283543
sha256	6cdca93b9144173cb42535820341c9ed794637890fe5d971e1915601fed3cc24
sha512	8054454a15d2c1751bc0f17162f865f83d36fb736965ea01ee95b19fcfb4cc469feb7d21b456c86de9cf5be7e17d11ffeebcec981d680595ffb0f151daf0863e
ripemd-160	63d00f2c81bdd26df00530fd5107d19b54d07f04

66561388 as geometric shapes

Circle

Radius = n

Diameter	133122776
Circumference	418217535.10708
Area	1.3918569811333E+16

Sphere

Radius = n

Volume	1.2352524341563E+24
Surface area	5.5674279245332E+16
Circumference	418217535.10708

Square

Length = n

Perimeter	266245552
Area	4430418372486544
Diagonal	94132017.639978

Cube

Length = n

Surface area	26582510234919264
Volume	2.9489479629341E+23
Space diagonal	115287705.83831

Equilateral Triangle

Length = n

Perimeter	199684164
Area	1.9184274299833E+15
Altitude	57643852.919153

Triangular Pyramid

Length = n

Surface area	1.9184274299833E+15
Volume	3.4753685032615E+22
Height	31377339.213326