71397991 (number)

71397991 is an odd 8-digits composite number following 71397990 and preceding 71397992. In scientific notation, it is written as 7.1397991 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 56103840 positive integers (up to 71397991) that are relatively prime to 71397991.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.1397991 × 10^7
Engineering notation 7.1397991 × 10^6

Prime Factorization of 71397991

Prime Factorization 7 × 19 × 31 × 17317

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 71397991
Product of the distinct prime numbers

The prime factorization of 71397991 is 7 × 19 × 31 × 17317. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 71397991)

Multiplication

n×y
n×2 142795982
n×3 214193973
n×4 285591964
n×5 356989955

Division

n÷y
n÷2 35698995.5
n÷3 23799330.333333
n÷3 17849497.75
n÷5 14279598.2

Exponentiation

ny
n2 5097673118836081
n3 3.639636194596E+23
n4 2.5986271226504E+31
n5 1.8553675591535E+39

Nth Root

y√n
2√n 8449.733191054
3√n 414.85404651202
4√n 91.922430293449
5√n 37.216643157418

Divisors of 71397991

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71397990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71397991 can be divided by 16 positive divisors. The sum of these divisors (counting 71397991) is 1, the average is 0.0625.

Base conversion 71397991

Base System Value
2 Binary 100010000010111001001100111
3 Ternary 11222100101122001
4 Quaternary 10100113021213
5 Quinary 121234213431
6 Senary 11030150131
8 Octal 420271147
10 Decimal 71397991
12 Duodecimal 1bab2347
16 Hexadecimal 4417267
20 Vigesimal 1264ejb
36 Base36 16ib1j

Cryptographic Hash Functions

md5 9d4a037903ad7557c0dd05f4a560c00f
sha1 b2abe9d52040bdf8d1f9ced66922d752b05b1bd5
sha256 ffe1efdb91a05ae13cf0e0ab20b540e129ea9b365066499980912125da02e47f
sha512 2ee0ea3892a2f66ab5c4d7e13397324488d31eb0709f8df34ae794c69a46e69f2fec1f8df1286214578fee71ee15b2ba2c05ae42fa0b3d7aefdd214748e5b7d1
ripemd-160 81d25025113bf303dd85c513cd62fdb397260c10

71397991 as geometric shapes

Circle

Radius = n
Diameter 142795982
Circumference 448606808.01334
Area 1.6014812420538E+16

Sphere

Radius = n
Volume 1.524567244091E+24
Surface area 6.405924968215E+16
Circumference 448606808.01334

Square

Length = n
Perimeter 285591964
Area 5097673118836081
Diagonal 100972007.19839

Cube

Length = n
Surface area 30586038713016486
Volume 3.639636194596E+23
Space diagonal 123664947.97035

Equilateral Triangle

Length = n
Perimeter 214193973
Area 2.2073572105505E+15
Altitude 61832473.985173

Triangular Pyramid

Length = n
Surface area 2.2073572105505E+15
Volume 4.2893523904181E+22
Height 33657335.732797