87128839 (number)

87128839 is an odd 8-digits composite number following 87128838 and preceding 87128840. In scientific notation, it is written as 8.7128839 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors. There are 74576376 positive integers (up to 87128839) that are relatively prime to 87128839.

Interesting facts

Basic properties

Name

Name eighty-seven million one hundred twenty-eight thousand eight hundred thirty-nine

Notation

Scientific notation 8.7128839 × 10^7
Engineering notation 8.7128839 × 10^6

Prime Factorization of 87128839

Prime Factorization 7 × 739 × 16843

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 87128839
Product of the distinct prime numbers

The prime factorization of 87128839 is 7 × 739 × 16843. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 66, 1, 31, 541, 5928, 7177, 88010, 94469, 861118, 695159, 6693202, 7237175, 85695437, 78488021, 639739307, 559598883, 1601629521, 6063221586

Basic calculations (n = 87128839)

Multiplication

n×y
n×2 174257678
n×3 261386517
n×4 348515356
n×5 435644195

Division

n÷y
n÷2 43564419.5
n÷3 29042946.333333
n÷3 21782209.75
n÷5 17425767.8

Exponentiation

ny
n2 7591434585487921
n3 6.6143288177801E+23
n4 5.7629879065742E+31
n5 5.0212244547085E+39

Nth Root

y√n
2√n 9334.2829933531
3√n 443.32338675305
4√n 96.614093140458
5√n 38.728652386516

Divisors of 87128839

1, 7, 739, 5173, 16843, 117901, 12446977, 87128839

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 -87128838
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 87128839 can be divided by 8 positive divisors. The sum of these divisors (counting 87128839) is 1, the average is 0.125.

Base conversion 87128839

Base System Value
2 Binary 101001100010111101100000111
3 Ternary 20001221121022001
4 Quaternary 11030113230013
5 Quinary 134301110324
6 Senary 12351250131
8 Octal 514275407
10 Decimal 87128839
12 Duodecimal 25219947
16 Hexadecimal 5317b07
20 Vigesimal 174b21j
36 Base36 1fvh1j

Cryptographic Hash Functions

md5 d52507bab7bee6623a1458b1938cf97a
sha1 bc4f9ef6841d98e142ce7b4bfab4374d4d8d8c2e
sha256 65b1f233d2f0d9c838af49bfd890fe3560807cfb06ebf22faf20d739b5330f2a
sha512 ad57576131c2e782774026cb44be1ccf662923bd77713fd58e2d17b62d9edb403ed3c767bb227ac3f85a7e855e1c016a6f0cb061969ce6f3c1aaa2cb5b110ecb
ripemd-160 934840a01f375ebdf49927cfb57ec4e37c813991

87128839 as geometric shapes

Circle

Radius = n
Diameter 174257678
Circumference 547446641.03642
Area 2.3849195123976E+16

Sphere

Radius = n
Volume 2.7706035763154E+24
Surface area 9.5396780495905E+16
Circumference 547446641.03642

Square

Length = n
Perimeter 348515356
Area 7591434585487921
Diagonal 123218785.78762

Cube

Length = n
Surface area 45548607512927526
Volume 6.6143288177801E+23
Space diagonal 150911575.95249

Equilateral Triangle

Length = n
Perimeter 261386517
Area 3.2871876011002E+15
Altitude 75455787.976244

Triangular Pyramid

Length = n
Surface area 3.2871876011002E+15
Volume 7.7950612667498E+22
Height 41072928.595874