640888915 (number)

640888915 is an odd 9-digits composite number following 640888914 and preceding 640888916. In scientific notation, it is written as 6.40888915 × 10^8. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 506488320 positive integers (up to 640888915) that are relatively prime to 640888915.

Interesting facts

Basic properties

Name

Name six hundred forty million eight hundred eighty-eight thousand nine hundred fifteen

Notation

Scientific notation 6.40888915 × 10^8
Engineering notation 6.40888915 × 10^6

Prime Factorization of 640888915

Prime Factorization 5 × 157 × 179 × 4561

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 640888915
Product of the distinct prime numbers

The prime factorization of 640888915 is 5 × 157 × 179 × 4561. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 62, 43, 359, 759, 9188, 2362, 85453, 65226, 811704, 767985, 830441, 5423590, 36874819, 27387573, 968308879, 241009703, 9650412516, 1879493998

Basic calculations (n = 640888915)

Multiplication

n×y
n×2 1281777830
n×3 1922666745
n×4 2563555660
n×5 3204444575

Division

n÷y
n÷2 320444457.5
n÷3 213629638.33333
n÷3 160222228.75
n÷5 128177783

Exponentiation

ny
n2 410738601369877225
n3 2.6323781658056E+26
n4 1.6870619865528E+35
n5 1.0812193260996E+44

Nth Root

y√n
2√n 25315.783910438
3√n 862.17267254302
4√n 159.10934576711
5√n 57.724017807461

Divisors of 640888915

1, 5, 157, 179, 785, 895, 4561, 22805, 28103, 140515, 716077, 816419, 3580385, 4082095, 128177783, 640888915

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -640888914
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 640888915 can be divided by 16 positive divisors. The sum of these divisors (counting 640888915) is 1, the average is 0.0625.

Base conversion 640888915

Base System Value
2 Binary 100110001100110011000001010011
3 Ternary 1122122221112022111
4 Quaternary 212030303001103
5 Quinary 2303031421130
6 Senary 143332250151
8 Octal 4614630123
10 Decimal 640888915
12 Duodecimal 15a770957
16 Hexadecimal 26333053
20 Vigesimal a05b25f
36 Base36 alkh1v

Cryptographic Hash Functions

md5 1250df49a391d587c55c10bbf9206916
sha1 8b6aa3193603054075ecd3bb76746d6f54ed8332
sha256 1b81b9c4cec967be41dd2c6de436c065250eca1652610c5d9fd9514e840c8201
sha512 3516d0882ce8c99302d814fdeed71f293ab2047307b2030a4ed82bc140e96449a2111b375713d2b0ca6a1218b02646fd582c11c3157827a7bc8bb3a0d8b079e2
ripemd-160 173a0aee2b30d30a8ef3482047c9ca756c14d7ac

640888915 as geometric shapes

Circle

Radius = n
Diameter 1281777830
Circumference 4026823814.2623
Area 1.2903733726094E+18

Sphere

Radius = n
Volume 1.102647987622E+27
Surface area 5.1614934904374E+18
Circumference 4026823814.2623

Square

Length = n
Perimeter 2563555660
Area 410738601369877225
Diagonal 906353795.56758

Cube

Length = n
Surface area 2464431608219263350
Volume 2.6323781658056E+26
Space diagonal 1110052162.7877

Equilateral Triangle

Length = n
Perimeter 1922666745
Area 1.778550315506E+17
Altitude 555026081.39385

Triangular Pyramid

Length = n
Surface area 1.778550315506E+17
Volume 3.1022874194809E+25
Height 302117931.85586