987991057 (number)

987991057 is an odd 9-digits composite number following 987991056 and preceding 987991058. In scientific notation, it is written as 9.87991057 × 10^8. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 891959040 positive integers (up to 987991057) that are relatively prime to 987991057.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.87991057 × 10^8
Engineering notation 9.87991057 × 10^6

Prime Factorization of 987991057

Prime Factorization 44659 × 22123

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 987991057
Product of the distinct prime numbers

The prime factorization of 987991057 is 44659 × 22123. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 79, 60, 882, 794, 1074, 5291, 33836, 70059, 807555, 934798, 6275461, 3680317, 53498174, 79062609, 80812446, 480827616, 4805893709, 4907774705

Basic calculations (n = 987991057)

Multiplication

n×y
n×2 1975982114
n×3 2963973171
n×4 3951964228
n×5 4939955285

Division

n÷y
n÷2 493995528.5
n÷3 329330352.33333
n÷3 246997764.25
n÷5 197598211.4

Exponentiation

ny
n2 976126328711977249
n3 9.6440408326968E+26
n4 9.5282260960472E+35
n5 9.4138021719687E+44

Nth Root

y√n
2√n 31432.325033316
3√n 995.9808873743
4√n 177.29163836266
5√n 62.94345859604

Divisors of 987991057

1, 22123, 44659, 987991057

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 -987991056
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 987991057 can be divided by 4 positive divisors. The sum of these divisors (counting 987991057) is 1, the average is 0.25.

Base conversion 987991057

Base System Value
2 Binary 111010111000111000110000010001
3 Ternary 2112212002010221101
4 Quaternary 322320320300101
5 Quinary 4010411203212
6 Senary 242012024401
8 Octal 7270706021
10 Decimal 987991057
12 Duodecimal 236a62101
16 Hexadecimal 3ae38c11
20 Vigesimal f8eihch
36 Base36 gc82s1

Cryptographic Hash Functions

md5 acef04805a5bd3c2de526983497eee69
sha1 bdcbd447ef7bc4758f51ac9bff391b11e02ffb4e
sha256 6c36eed4510e186ee89cadef9e184750e4ef2d828279010f077f5d3c6478b8c8
sha512 aba072af7d01ec968bf45112f06e17bcf53e25ce8594795a767fb369365cbe25be5dd0ad15edb74773fb79cd41b7f65b49ad1e7d0b3fd0a8a9fbcadc579e3495
ripemd-160 3f6bde193e4a53acfcbb627cba28a2935b666e47

987991057 as geometric shapes

Circle

Radius = n
Diameter 1975982114
Circumference 6207730892.9672
Area 3.0665913032571E+18

Sphere

Radius = n
Volume 4.039686377456E+27
Surface area 1.2266365213028E+19
Circumference 6207730892.9672

Square

Length = n
Perimeter 3951964228
Area 976126328711977249
Diagonal 1397230352.3127

Cube

Length = n
Surface area 5856757972271863494
Volume 9.6440408326968E+26
Space diagonal 1711250708.1477

Equilateral Triangle

Length = n
Perimeter 2963973171
Area 4.2267509898371E+17
Altitude 855625354.07384

Triangular Pyramid

Length = n
Surface area 4.2267509898371E+17
Volume 1.1365611118066E+26
Height 465743450.77091