68978021 (number)

68978021 is an odd 8-digits composite number following 68978020 and preceding 68978022. In scientific notation, it is written as 6.8978021 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 58121568 positive integers (up to 68978021) that are relatively prime to 68978021.

Interesting facts

Basic properties

Name

Name sixty-eight million nine hundred seventy-eight thousand twenty-one

Notation

Scientific notation 6.8978021 × 10^7
Engineering notation 6.8978021 × 10^6

Prime Factorization of 68978021

Prime Factorization 7 × 59 × 167017

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 68978021
Product of the distinct prime numbers

The prime factorization of 68978021 is 7 × 59 × 167017. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 68978021)

Multiplication

n×y
n×2 137956042
n×3 206934063
n×4 275912084
n×5 344890105

Division

n÷y
n÷2 34489010.5
n÷3 22992673.666667
n÷3 17244505.25
n÷5 13795604.2

Exponentiation

ny
n2 4757967381076441
n3 3.2819517392921E+23
n4 2.2638253599387E+31
n5 1.5615419321819E+39

Nth Root

y√n
2√n 8305.3007772145
3√n 410.11303843347
4√n 91.133422942489
5√n 36.960866660946

Divisors of 68978021

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 -68978020
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 68978021 can be divided by 8 positive divisors. The sum of these divisors (counting 68978021) is 1, the average is 0.125.

Base conversion 68978021

Base System Value
2 Binary 100000111001000010101100101
3 Ternary 11210210110001112
4 Quaternary 10013020111211
5 Quinary 120124244041
6 Senary 10502234405
8 Octal 407102545
10 Decimal 68978021
12 Duodecimal 1b125a05
16 Hexadecimal 41c8565
20 Vigesimal 11b2511
36 Base36 152fs5

Cryptographic Hash Functions

md5 200012335bb8b764a7e4b9704164cb53
sha1 bace50084836aada169d6e74e86da272d29c5a03
sha256 ae994bc6ce628de1d48a7b732a41dbed9178aa919f9be90118078745a65ca82b
sha512 51026044293a4a6680eb11fb659d81a04955bbb15a27a8e308bce1c66311911e9f1e93741165ece15810494e51f62c0babd4400d4a55572d1cae7427ca9d5611
ripemd-160 87b623cf97a415d8172610fccb67f2f85ccd4348

68978021 as geometric shapes

Circle

Radius = n
Diameter 137956042
Circumference 433401688.06552
Area 1.494759537041E+16

Sphere

Radius = n
Volume 1.3747407298128E+24
Surface area 5.9790381481638E+16
Circumference 433401688.06552

Square

Length = n
Perimeter 275912084
Area 4757967381076441
Diagonal 97549652.803856

Cube

Length = n
Surface area 28547804286458646
Volume 3.2819517392921E+23
Space diagonal 119473436.97755

Equilateral Triangle

Length = n
Perimeter 206934063
Area 2.060260311195E+15
Altitude 59736718.488776

Triangular Pyramid

Length = n
Surface area 2.060260311195E+15
Volume 3.8678172173007E+22
Height 32516550.934619