640069891 (number)

640069891 is an odd 9-digits composite number following 640069890 and preceding 640069892. In scientific notation, it is written as 6.40069891 × 10^8. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 601953408 positive integers (up to 640069891) that are relatively prime to 640069891.

Interesting facts

Basic properties

Name

Name six hundred forty million sixty-nine thousand eight hundred ninety-one

Notation

Scientific notation 6.40069891 × 10^8
Engineering notation 6.40069891 × 10^6

Prime Factorization of 640069891

Prime Factorization 19 × 137 × 245897

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 640069891
Product of the distinct prime numbers

The prime factorization of 640069891 is 19 × 137 × 245897. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 1, 41, 79, 630, 669, 2762, 7551, 64486, 36704, 216521, 694976, 4097707, 6088901, 36115436, 28823192, 865455999, 989041311, 8285996550, 8437765936

Basic calculations (n = 640069891)

Multiplication

n×y
n×2 1280139782
n×3 1920209673
n×4 2560279564
n×5 3200349455

Division

n÷y
n÷2 320034945.5
n÷3 213356630.33333
n÷3 160017472.75
n÷5 128013978.2

Exponentiation

ny
n2 409689465364751881
n3 2.6222989143987E+26
n4 1.6784545803086E+35
n5 1.0743282402666E+44

Nth Root

y√n
2√n 25299.602585812
3√n 861.80524478652
4√n 159.05848794016
5√n 57.709256577975

Divisors of 640069891

1, 19, 137, 2603, 245897, 4672043, 33687889, 640069891

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 -640069890
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 640069891 can be divided by 8 positive divisors. The sum of these divisors (counting 640069891) is 1, the average is 0.125.

Base conversion 640069891

Base System Value
2 Binary 100110001001101011000100000011
3 Ternary 1122121101220211021
4 Quaternary 212021223010003
5 Quinary 2302324214031
6 Senary 143302530311
8 Octal 4611530403
10 Decimal 640069891
12 Duodecimal 15a436997
16 Hexadecimal 2626b103
20 Vigesimal a008eeb
36 Base36 al2x37

Cryptographic Hash Functions

md5 c12ffe80ad11eed529b5450f1e0667a8
sha1 c45f86b15a88fee071242534caf7d54757b638fc
sha256 d408719bacb0e970e8a0e93eaf316c14a8a78871c8c82dded4a9e28b5ff1a259
sha512 f2b6099b4c6d81570e50a088b8f3d9d515ea0f92fe1e96a73d047e7ef5a5c6733d4784b573e673f827bf59d7cd572018b1427f37293122ad7a3ba8ce013fe64b
ripemd-160 330a7713fb67f24268e3da183e19e88547a7539a

640069891 as geometric shapes

Circle

Radius = n
Diameter 1280139782
Circumference 4021677734.6992
Area 1.287077414643E+18

Sphere

Radius = n
Volume 1.0984260006655E+27
Surface area 5.1483096585721E+18
Circumference 4021677734.6992

Square

Length = n
Perimeter 2560279564
Area 409689465364751881
Diagonal 905195520.71887

Cube

Length = n
Surface area 2458136792188511286
Volume 2.6222989143987E+26
Space diagonal 1108633571.6071

Equilateral Triangle

Length = n
Perimeter 1920209673
Area 1.7740074233437E+17
Altitude 554316785.80354

Triangular Pyramid

Length = n
Surface area 1.7740074233437E+17
Volume 3.0904089077823E+25
Height 301731840.23962