68991640 (number)

68991640 is an even 8-digits composite number following 68991639 and preceding 68991641. In scientific notation, it is written as 6.8991640 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 16 positive divisors. There are 27596640 positive integers (up to 68991640) that are relatively prime to 68991640.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.8991640 × 10^7
Engineering notation 6.8991640 × 10^6

Prime Factorization of 68991640

Prime Factorization 2 × 2 × 2 × 5 × 1724791

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 17247910
Product of the distinct prime numbers

The prime factorization of 68991640 is 2 × 2 × 2 × 5 × 1724791. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 17, 66, 965, 83, 711, 298, 31470, 89525, 141543, 656953, 8385637, 7813221, 18005917, 2766786, 505226059, 848971107, 2919944770, 1196034516

Basic calculations (n = 68991640)

Multiplication

n×y
n×2 137983280
n×3 206974920
n×4 275966560
n×5 344958200

Division

n÷y
n÷2 34495820
n÷3 22997213.333333
n÷3 17247910
n÷5 13798328

Exponentiation

ny
n2 4759846389889600
n3 3.2838960858656E+23
n4 2.2656137655345E+31
n5 1.563084092908E+39

Nth Root

y√n
2√n 8306.120634809
3√n 410.14002752285
4√n 91.137920948467
5√n 36.962326054203

Divisors of 68991640

1, 2, 4, 5, 8, 10, 20, 40, 1724791, 3449582, 6899164, 8623955, 13798328, 17247910, 34495820, 68991640

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 -68991639
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 68991640 can be divided by 16 positive divisors. The sum of these divisors (counting 68991640) is 1, the average is 0.0625.

Base conversion 68991640

Base System Value
2 Binary 100000111001011101010011000
3 Ternary 11210211010201221
4 Quaternary 10013023222120
5 Quinary 120130213030
6 Senary 10502421424
8 Octal 407135230
10 Decimal 68991640
12 Duodecimal 1b131874
16 Hexadecimal 41cba98
20 Vigesimal 11b3j20
36 Base36 152qag

Cryptographic Hash Functions

md5 09a8d6623b386ddd138f5e4cb9977fd2
sha1 a611b1c32827e854c443bf3fa2c725d7a23f2074
sha256 54428c48651167ed6252e16db1b80e5e4a90df2ac0dc484c197a982edce9349a
sha512 fde1425cddf3bd21bbe307c89d052d020680b5a6e9c5233928577e17f82285b5f7cd3bab1514113d881738cb8cb49f149dcda7d9b686890bf5900588975ada82
ripemd-160 110e85e709b8414b09792f8cc1a87f5f91c71f6e

68991640 as geometric shapes

Circle

Radius = n
Diameter 137983280
Circumference 433487258.76622
Area 1.4953498450693E+16

Sphere

Radius = n
Volume 1.375555175801E+24
Surface area 5.9813993802772E+16
Circumference 433487258.76622

Square

Length = n
Perimeter 275966560
Area 4759846389889600
Diagonal 97568912.978362

Cube

Length = n
Surface area 28559078339337600
Volume 3.2838960858656E+23
Space diagonal 119497025.7775

Equilateral Triangle

Length = n
Perimeter 206974920
Area 2.061073945878E+15
Altitude 59748512.888751

Triangular Pyramid

Length = n
Surface area 2.061073945878E+15
Volume 3.8701086517126E+22
Height 32522970.992787