7978707921 (number)

7978707921 is an odd 10-digits composite number following 7978707920 and preceding 7978707922. In scientific notation, it is written as 7.978707921 × 10^9. The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors. There are 5084892624 positive integers (up to 7978707921) that are relatively prime to 7978707921.

Interesting facts

Basic properties

Name

Name seven billion nine hundred seventy-eight million seven hundred seven thousand nine hundred twenty-one

Notation

Scientific notation 7.978707921 × 10^9
Engineering notation 7.978707921 × 10^9

Prime Factorization of 7978707921

Prime Factorization 3 × 43 × 47 × 1315967

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7978707921
Product of the distinct prime numbers

The prime factorization of 7978707921 is 3 × 43 × 47 × 1315967. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 42, 27, 889, 160, 1931, 8223, 27035, 55534, 688609, 280298, 8811087, 3597972, 24770727, 87310259, 228383659, 980900004, 7253043248, 2686018738

Basic calculations (n = 7978707921)

Multiplication

n×y
n×2 15957415842
n×3 23936123763
n×4 31914831684
n×5 39893539605

Division

n÷y
n÷2 3989353960.5
n÷3 2659569307
n÷3 1994676980.25
n÷5 1595741584.2

Exponentiation

ny
n2 6.3659780088628E+19
n3 5.0792279164226E+29
n4 4.0525676009325E+39
n5 3.2334253217948E+49

Nth Root

y√n
2√n 89323.613456913
3√n 1998.2240836106
4√n 298.87056304848
5√n 95.584288864239

Divisors of 7978707921

1, 3, 43, 47, 129, 141, 2021, 6063, 1315967, 3947901, 56586581, 61850449, 169759743, 185551347, 2659569307, 7978707921

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 -7978707920
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 7978707921 can be divided by 16 positive divisors. The sum of these divisors (counting 7978707921) is 1, the average is 0.0625.

Base conversion 7978707921

Base System Value
2 Binary 111011011100100010110101111010001
3 Ternary 202121001100100122210
4 Quaternary 13123210112233101
5 Quinary 112320022123141
6 Senary 3355415222333
8 Octal 73344265721
10 Decimal 7978707921
12 Duodecimal 16680779a9
16 Hexadecimal 1db916bd1
20 Vigesimal 64d6i9g1
36 Base36 3nybefl

Cryptographic Hash Functions

md5 ac56141239826cc285dfae8c93c28feb
sha1 f251bf9652d3e0abc59a4aac12f3d5e85fa0cb55
sha256 5c81589c1283913e8f9bc115d048ca7799aecc695e017278a89adc2744ca57b7
sha512 6dcd393f6f7ff3f684af86c5ec6a5e40d140dcebe65e01f7fde3bb8bce9580ce21e24a2a7177b162ca54b6f0926cd12f7716808115ce3e45ea3a4286258ad945
ripemd-160 795c02dc8aa942f1ceda07d33dc1a7c50d5a9abd

7978707921 as geometric shapes

Circle

Radius = n
Diameter 15957415842
Circumference 50131700379.505
Area 1.9999309745558E+20

Sphere

Radius = n
Volume 2.1275820144188E+30
Surface area 7.999723898223E+20
Circumference 50131700379.505

Square

Length = n
Perimeter 31914831684
Area 6.3659780088628E+19
Diagonal 11283596952.092

Cube

Length = n
Surface area 3.8195868053177E+20
Volume 5.0792279164226E+29
Space diagonal 13819527497.924

Equilateral Triangle

Length = n
Perimeter 23936123763
Area 2.7565493378041E+19
Altitude 6909763748.9621

Triangular Pyramid

Length = n
Surface area 2.7565493378041E+19
Volume 5.985927504824E+28
Height 3761198984.0306