640955961 (number)

640955961 is an odd 9-digits composite number following 640955960 and preceding 640955962. In scientific notation, it is written as 6.40955961 × 10^8. The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors. There are 427303968 positive integers (up to 640955961) that are relatively prime to 640955961.

Interesting facts

Basic properties

Name

Name six hundred forty million nine hundred fifty-five thousand nine hundred sixty-one

Notation

Scientific notation 6.40955961 × 10^8
Engineering notation 6.40955961 × 10^6

Prime Factorization of 640955961

Prime Factorization 9 × 71217329

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 640955961
Product of the distinct prime numbers

The prime factorization of 640955961 is 9 × 71217329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 6, 52, 94, 701, 90, 5586, 9701, 77457, 8830, 213613, 877892, 7167079, 3222609, 15128042, 51306155, 326082489, 798000593, 4630367355, 1374343857

Basic calculations (n = 640955961)

Multiplication

n×y
n×2 1281911922
n×3 1922867883
n×4 2563823844
n×5 3204779805

Division

n÷y
n÷2 320477980.5
n÷3 213651987
n÷3 160238990.25
n÷5 128191192.2

Exponentiation

ny
n2 410824543941433521
n3 2.6332044036437E+26
n4 1.6877680590469E+35
n5 1.0817849982315E+44

Nth Root

y√n
2√n 25317.108069446
3√n 862.20273662642
4√n 159.11350687307
5√n 57.725225505852

Divisors of 640955961

1, 9, 71217329, 640955961

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 -640955960
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 640955961 can be divided by 4 positive divisors. The sum of these divisors (counting 640955961) is 1, the average is 0.25.

Base conversion 640955961

Base System Value
2 Binary 100110001101000011011000111001
3 Ternary 1122200001221021200
4 Quaternary 212031003120321
5 Quinary 2303041042321
6 Senary 143333524413
8 Octal 4615033071
10 Decimal 640955961
12 Duodecimal 15a7a3709
16 Hexadecimal 26343639
20 Vigesimal a05j9i1
36 Base36 allws9

Cryptographic Hash Functions

md5 7f77211b9863f362b3b84bcc96e24faa
sha1 14f84a5b25388d2a7e04a35fd3d01ef2d64a97b2
sha256 a93cd2f73db58536c3e7dff48c3d2b5b3d34a9e9bf7fdbe398db8ff0356b59b0
sha512 37ba7142a337cbbfcb1783814a516cce5845701f187f3d7282750fc674437cbdd21799537c1f5f4de5291ca55c46b44a3228537cccb6b21018151072a3515277
ripemd-160 61ba2c9669586984adb0c663ef572395e182e898

640955961 as geometric shapes

Circle

Radius = n
Diameter 1281911922
Circumference 4027245076.7044
Area 1.2906433691608E+18

Sphere

Radius = n
Volume 1.1029940813183E+27
Surface area 5.1625734766431E+18
Circumference 4027245076.7044

Square

Length = n
Perimeter 2563823844
Area 410824543941433521
Diagonal 906448612.93008

Cube

Length = n
Surface area 2464947263648601126
Volume 2.6332044036437E+26
Space diagonal 1110168289.8661

Equilateral Triangle

Length = n
Perimeter 1922867883
Area 1.7789224577572E+17
Altitude 555084144.93307

Triangular Pyramid

Length = n
Surface area 1.7789224577572E+17
Volume 3.1032611501112E+25
Height 302149537.64336