138757981 (number)

138757981 is an odd 9-digits composite number following 138757980 and preceding 138757982. In scientific notation, it is written as 1.38757981 × 10^8. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 131673600 positive integers (up to 138757981) that are relatively prime to 138757981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.38757981 × 10^8
Engineering notation 1.38757981 × 10^6

Prime Factorization of 138757981

Prime Factorization 109 × 2501 × 509

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 138757981
Product of the distinct prime numbers

The prime factorization of 138757981 is 109 × 2501 × 509. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 138757981)

Multiplication

n×y
n×2 277515962
n×3 416273943
n×4 555031924
n×5 693789905

Division

n÷y
n÷2 69378990.5
n÷3 46252660.333333
n÷3 34689495.25
n÷5 27751596.2

Exponentiation

ny
n2 19253777291196361
n3 2.6716152635501E+24
n4 3.7070793997899E+32
n5 5.1438685292154E+40

Nth Root

y√n
2√n 11779.557759101
3√n 517.70932868148
4√n 108.5336710846
5√n 42.506132767484

Divisors of 138757981

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 -138757980
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 138757981 can be divided by 8 positive divisors. The sum of these divisors (counting 138757981) is 1, the average is 0.125.

Base conversion 138757981

Base System Value
2 Binary 1000010001010100011101011101
3 Ternary 100200002122011111
4 Quaternary 20101110131131
5 Quinary 241010223411
6 Senary 21434022021
8 Octal 1021243535
10 Decimal 138757981
12 Duodecimal 3a577911
16 Hexadecimal 845475d
20 Vigesimal 2374ej1
36 Base36 2am2cd

Cryptographic Hash Functions

md5 d6f7ef3d4fac31ce52b04032d117b783
sha1 fa655d7aae9851eb1f6e06b2fdfbb431f880c682
sha256 6de89fce07789ce06a014bfe7e6ed4c6de7a24cfa2fb8d0009d7533f172ed20f
sha512 cd95a575306e40174e17415d8d6d424aaf4e481fa7d964e97eb8da9fa1e8eab122199ae454b7e083f2a23ebcc20266a4057701f70a03d12b6e53361ca006cf3b
ripemd-160 2fa3e05033592a759a8630b2f013f2d0d59595a2

138757981 as geometric shapes

Circle

Radius = n
Diameter 277515962
Circumference 871842107.4731
Area 6.0487525291876E+16

Sphere

Radius = n
Volume 1.1190835846916E+25
Surface area 2.4195010116751E+17
Circumference 871842107.4731

Square

Length = n
Perimeter 555031924
Area 19253777291196361
Diagonal 196233418.61771

Cube

Length = n
Surface area 115522663747178166
Volume 2.6716152635501E+24
Space diagonal 240335873.04768

Equilateral Triangle

Length = n
Perimeter 416273943
Area 8.337130126492E+15
Altitude 120167936.52384

Triangular Pyramid

Length = n
Surface area 8.337130126492E+15
Volume 3.1485287826296E+23
Height 65411139.539236