71398987 (number)

71398987 is an odd 8-digits composite number following 71398986 and preceding 71398988. In scientific notation, it is written as 7.1398987 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 64908160 positive integers (up to 71398987) that are relatively prime to 71398987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.1398987 × 10^7
Engineering notation 7.1398987 × 10^6

Prime Factorization of 71398987

Prime Factorization 11 × 6490817

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 71398987
Product of the distinct prime numbers

The prime factorization of 71398987 is 11 × 6490817. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 52, 15, 603, 16, 1760, 5134, 65130, 27334, 701381, 376797, 7642601, 8593628, 10311455, 1511553, 188105961, 146006783, 5265751761, 3155955148

Basic calculations (n = 71398987)

Multiplication

n×y
n×2 142797974
n×3 214196961
n×4 285595948
n×5 356994935

Division

n÷y
n÷2 35699493.5
n÷3 23799662.333333
n÷3 17849746.75
n÷5 14279797.4

Exponentiation

ny
n2 5097815344626169
n3 3.6397885151936E+23
n4 2.5987721287906E+31
n5 1.8554969743948E+39

Nth Root

y√n
2√n 8449.7921276207
3√n 414.85597557054
4√n 91.922750870612
5√n 37.216746991067

Divisors of 71398987

1, 11, 6490817, 71398987

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 -71398986
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 71398987 can be divided by 4 positive divisors. The sum of these divisors (counting 71398987) is 1, the average is 0.25.

Base conversion 71398987

Base System Value
2 Binary 100010000010111011001001011
3 Ternary 11222100102222221
4 Quaternary 10100113121023
5 Quinary 121234231422
6 Senary 11030154511
8 Octal 420273113
10 Decimal 71398987
12 Duodecimal 1bab2a37
16 Hexadecimal 441764b
20 Vigesimal 1264h97
36 Base36 16ibt7

Cryptographic Hash Functions

md5 905c39fb2790fb9c305dfdfa86f1e726
sha1 5686df8c20704a1b6a82817e6f1afb74eeefd51f
sha256 c39a119f0858fa3fbb8e3f12a69824ea1e39a710ea49b029d2753495680a3b51
sha512 49020dc4aecdf30e4f1940901998dee652aac061aa43542c70d74464b589c29ac4675b0d16f7b6d031bd3b6a50ca8ef534a94fa4e49abb54ea5e9a5253adef9b
ripemd-160 d1745a5e91600d78973e3578cda825b61b30e603

71398987 as geometric shapes

Circle

Radius = n
Diameter 142797974
Circumference 448613066.06591
Area 1.6015259236035E+16

Sphere

Radius = n
Volume 1.5246310479937E+24
Surface area 6.406103694414E+16
Circumference 448613066.06591

Square

Length = n
Perimeter 285595948
Area 5097815344626169
Diagonal 100973415.7551

Cube

Length = n
Surface area 30586892067757014
Volume 3.6397885151936E+23
Space diagonal 123666673.09295

Equilateral Triangle

Length = n
Perimeter 214196961
Area 2.2074187961242E+15
Altitude 61833336.546475

Triangular Pyramid

Length = n
Surface area 2.2074187961242E+15
Volume 4.2895319019639E+22
Height 33657805.2517