87890991 (number)

87890991 is an odd 8-digits composite number following 87890990 and preceding 87890992. In scientific notation, it is written as 8.7890991 × 10^7. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 58377240 positive integers (up to 87890991) that are relatively prime to 87890991.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.7890991 × 10^7
Engineering notation 8.7890991 × 10^6

Prime Factorization of 87890991

Prime Factorization 3 × 271 × 108107

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 87890991
Product of the distinct prime numbers

The prime factorization of 87890991 is 3 × 271 × 108107. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 5, 63, 28, 85, 466, 7005, 4627, 34225, 33055, 60758, 16955, 7594641, 1455762, 76560247, 65472380, 712567701, 595643904, 9664666822, 9139894061

Basic calculations (n = 87890991)

Multiplication

n×y
n×2 175781982
n×3 263672973
n×4 351563964
n×5 439454955

Division

n÷y
n÷2 43945495.5
n÷3 29296997
n÷3 21972747.75
n÷5 17578198.2

Exponentiation

ny
n2 7724826298962081
n3 6.7894263871864E+23
n4 5.9672941349136E+31
n5 5.2447139510605E+39

Nth Root

y√n
2√n 9375.0195199797
3√n 444.61228022091
4√n 96.824684455875
5√n 38.796171659324

Divisors of 87890991

1, 3, 271, 813, 108107, 324321, 29296997, 87890991

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 -87890990
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 87890991 can be divided by 8 positive divisors. The sum of these divisors (counting 87890991) is 1, the average is 0.125.

Base conversion 87890991

Base System Value
2 Binary 101001111010001110000101111
3 Ternary 20010101022202220
4 Quaternary 11033101300233
5 Quinary 140000002431
6 Senary 12415450423
8 Octal 517216057
10 Decimal 87890991
12 Duodecimal 25526a13
16 Hexadecimal 53d1c2f
20 Vigesimal 179679b
36 Base36 1gbt4f

Cryptographic Hash Functions

md5 8cbbabda706a34238694b572f7301bc3
sha1 2509150846155497c16a27c79ccbd843031f8f33
sha256 b6f16872871b91b6dd4c002f828f0e4ef94373e8d10667c5572872d5c17556dc
sha512 03fd2faff3fc3f303fec1593be0074457de46f9a2e7ca16458595d8495894dc9bc0f88cbc57aed03289438df024c32970c2d9c1b730895d66d86f6c9ce9dbb29
ripemd-160 39e77478213fae76220892a843f2fc8d9e84b404

87890991 as geometric shapes

Circle

Radius = n
Diameter 175781982
Circumference 552235383.28465
Area 2.4268257551077E+16

Sphere

Radius = n
Volume 2.8439482746765E+24
Surface area 9.7073030204306E+16
Circumference 552235383.28465

Square

Length = n
Perimeter 351563964
Area 7724826298962081
Diagonal 124296631.48261

Cube

Length = n
Surface area 46348957793772486
Volume 6.7894263871864E+23
Space diagonal 152231661.93958

Equilateral Triangle

Length = n
Perimeter 263672973
Area 3.3449479073616E+15
Altitude 76115830.969789

Triangular Pyramid

Length = n
Surface area 3.3449479073616E+15
Volume 8.001415731244E+22
Height 41432210.494204