38961981 (number)

38961981 is an odd 8-digits composite number following 38961980 and preceding 38961982. In scientific notation, it is written as 3.8961981 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors. There are 25548480 positive integers (up to 38961981) that are relatively prime to 38961981.

Interesting facts

Basic properties

Name

Name thirty-eight million nine hundred sixty-one thousand nine hundred eighty-one

Notation

Scientific notation 3.8961981 × 10^7
Engineering notation 3.8961981 × 10^6

Prime Factorization of 38961981

Prime Factorization 3 × 3 × 61 × 70969

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 12987327
Product of the distinct prime numbers

The prime factorization of 38961981 is 3 × 3 × 61 × 70969. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 13, 33, 213, 967, 2199, 5509, 32681, 94150, 119790, 212314, 6570008, 5138201, 12906252, 4272092, 17684448, 622217497, 8844800572, 3525013473

Basic calculations (n = 38961981)

Multiplication

n×y
n×2 77923962
n×3 116885943
n×4 155847924
n×5 194809905

Division

n÷y
n÷2 19480990.5
n÷3 12987327
n÷3 9740495.25
n÷5 7792396.2

Exponentiation

ny
n2 1518035963444361
n3 5.9145688365036E+22
n4 2.3044331863104E+30
n5 8.9785282020797E+37

Nth Root

y√n
2√n 6241.9533000496
3√n 339.01091149257
4√n 79.006033314232
5√n 32.970702908443

Divisors of 38961981

1, 3, 9, 61, 183, 549, 70969, 212907, 638721, 4329109, 12987327, 38961981

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -38961980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 38961981 can be divided by 12 positive divisors. The sum of these divisors (counting 38961981) is 1, the average is 0.083333333333333.

Base conversion 38961981

Base System Value
2 Binary 10010100101000001100111101
3 Ternary 2201022110210100
4 Quaternary 2110220030331
5 Quinary 34433240411
6 Senary 3511031313
8 Octal 224501475
10 Decimal 38961981
12 Duodecimal 1106b539
16 Hexadecimal 252833d
20 Vigesimal c3a4j1
36 Base36 n7399

Cryptographic Hash Functions

md5 4c5a8666bd6b09fe22eeae34ebe79160
sha1 fa7448dc2c5394198dadb70634c92063f75462f7
sha256 13334fd7f0db4362e34ca28f0b8f7b93430a129cbd344c26d4547e2c9d74ea3f
sha512 75b8b342d4122ad4d2cfa68d6d6c1eb9e8f012fc008b3687060c2671a239891faa9a9f3d1999a4b8817f0b638687ad88694f4b121fa641b8d51f662677da13f6
ripemd-160 d4917c7be66e12dc00df8a0e1b6ce18e4fb47cae

38961981 as geometric shapes

Circle

Radius = n
Diameter 77923962
Circumference 244805346.55781
Area 4.7690506306419E+15

Sphere

Radius = n
Volume 2.4774888007881E+23
Surface area 1.9076202522568E+16
Circumference 244805346.55781

Square

Length = n
Perimeter 155847924
Area 1518035963444361
Diagonal 55100561.947123

Cube

Length = n
Surface area 9108215780666166
Volume 5.9145688365036E+22
Space diagonal 67484130.655533

Equilateral Triangle

Length = n
Perimeter 116885943
Area 6.573288541006E+14
Altitude 33742065.327767

Triangular Pyramid

Length = n
Surface area 6.573288541006E+14
Volume 6.9703862201439E+21
Height 18366853.982374