987389991 (number)

987389991 is an odd 9-digits composite number following 987389990 and preceding 987389992. In scientific notation, it is written as 9.87389991 × 10^8. The sum of its digits is 63. It has a total of 3 prime factors and 8 positive divisors. There are 564222816 positive integers (up to 987389991) that are relatively prime to 987389991.

Interesting facts

Basic properties

Name

Name nine hundred eighty-seven million three hundred eighty-nine thousand nine hundred ninety-one

Notation

Scientific notation 9.87389991 × 10^8
Engineering notation 9.87389991 × 10^6

Prime Factorization of 987389991

Prime Factorization 7 × 9 × 15672857

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 987389991
Product of the distinct prime numbers

The prime factorization of 987389991 is 7 × 9 × 15672857. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 3, 69, 85, 992, 112, 4146, 68, 91888, 12418, 338939, 105498, 6375746, 9191702, 56437458, 50774487, 63301571, 242000520, 7970019653, 9058384912

Basic calculations (n = 987389991)

Multiplication

n×y
n×2 1974779982
n×3 2962169973
n×4 3949559964
n×5 4936949955

Division

n÷y
n÷2 493694995.5
n÷3 329129997
n÷3 246847497.75
n÷5 197477998.2

Exponentiation

ny
n2 974938994326980081
n3 9.6264500483407E+26
n4 9.505060426593E+35
n5 9.3852015290682E+44

Nth Root

y√n
2√n 31422.762306965
3√n 995.77887080559
4√n 177.26466739586
5√n 62.935798125303

Divisors of 987389991

1, 7, 9, 63, 15672857, 109709999, 141055713, 987389991

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 -987389990
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 987389991 can be divided by 8 positive divisors. The sum of these divisors (counting 987389991) is 1, the average is 0.125.

Base conversion 987389991

Base System Value
2 Binary 111010110110100110000000100111
3 Ternary 2112210221121102200
4 Quaternary 322312212000213
5 Quinary 4010232434431
6 Senary 241551105543
8 Octal 7266460047
10 Decimal 987389991
12 Duodecimal 2368122b3
16 Hexadecimal 3ada6027
20 Vigesimal f8b3ejb
36 Base36 gbv6zr

Cryptographic Hash Functions

md5 3e49497e37891ddc3c3899e2acbeff81
sha1 427007ee24bb519581bd02e3c08885b24baca0d7
sha256 9adf73b25ef3484c99c28f0af52f66ba9ce5b452ee82451165003548167a8c87
sha512 f22cbdda7470c242a965d3016bdc0af75f32426f07f182d22d30d747d5081f5dec791b168d2e698fef7261dec7f07955483f8fc4527eb04793f0fc3c7400f714
ripemd-160 3cc115f5f0f28822179acc9b8368e68f9232ddb5

987389991 as geometric shapes

Circle

Radius = n
Diameter 1974779982
Circumference 6203954283.9074
Area 3.0628611822759E+18

Sphere

Radius = n
Volume 4.0323179669355E+27
Surface area 1.2251444729103E+19
Circumference 6203954283.9074

Square

Length = n
Perimeter 3949559964
Area 974938994326980081
Diagonal 1396380316.6236

Cube

Length = n
Surface area 5849633965961880486
Volume 9.6264500483407E+26
Space diagonal 1710209631.297

Equilateral Triangle

Length = n
Perimeter 2962169973
Area 4.2216096811361E+17
Altitude 855104815.64849

Triangular Pyramid

Length = n
Surface area 4.2216096811361E+17
Volume 1.1344880179892E+26
Height 465460105.54122