138657981 (number)

138657981 is an odd 9-digits composite number following 138657980 and preceding 138657982. In scientific notation, it is written as 1.38657981 × 10^8. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 70079040 positive integers (up to 138657981) that are relatively prime to 138657981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.38657981 × 10^8
Engineering notation 1.38657981 × 10^6

Prime Factorization of 138657981

Prime Factorization 37 × 33 × 7 × 16223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 138657981
Product of the distinct prime numbers

The prime factorization of 138657981 is 37 × 33 × 7 × 16223. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 77, 15, 481, 357, 6244, 1542, 27506, 93797, 205171, 55789, 7954954, 7574620, 7825857, 12105498, 828189450, 787384042, 5177576832, 353365455

Basic calculations (n = 138657981)

Multiplication

n×y
n×2 277315962
n×3 415973943
n×4 554631924
n×5 693289905

Division

n÷y
n÷2 69328990.5
n÷3 46219327
n÷3 34664495.25
n÷5 27731596.2

Exponentiation

ny
n2 19226035694996361
n3 2.6658432921021E+24
n4 3.6964044854527E+32
n5 5.1253598291222E+40

Nth Root

y√n
2√n 11775.312352545
3√n 517.58493133337
4√n 108.51411130606
5√n 42.500004342859

Divisors of 138657981

1, 7, 33, 37, 231, 259, 1221, 8547, 16223, 113561, 535359, 600251, 3747513, 4201757, 19808283, 138657981

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 -138657980
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 138657981 can be divided by 16 positive divisors. The sum of these divisors (counting 138657981) is 1, the average is 0.0625.

Base conversion 138657981

Base System Value
2 Binary 1000010000111100000010111101
3 Ternary 100122220112222210
4 Quaternary 20100330002331
5 Quinary 240444023411
6 Senary 21431531033
8 Octal 1020740275
10 Decimal 138657981
12 Duodecimal 3a529a79
16 Hexadecimal 843c0bd
20 Vigesimal 236c4j1
36 Base36 2ajx6l

Cryptographic Hash Functions

md5 7e7a8fb98a9a0c6912aa04534316dd6a
sha1 18793542d2c945983086c5bf3e410a9d98d2bc1d
sha256 e94101c0a7bfe0bd6a64587e22fdf97e2645222e53ad69a4ccb85bc85736135a
sha512 509fda62fb43d311d1e6e685cf960cb790b3c4673a6abbb5ef473e69ecb32d89e23519b12923f5c5c5c31ffa977a7b63c198dda200357116b5ef9f245ce88874
ripemd-160 097b213b606c64bc9e232f69c640658ba172a227

138657981 as geometric shapes

Circle

Radius = n
Diameter 277315962
Circumference 871213788.94239
Area 6.0400372497056E+16

Sphere

Radius = n
Volume 1.1166658269453E+25
Surface area 2.4160148998822E+17
Circumference 871213788.94239

Square

Length = n
Perimeter 554631924
Area 19226035694996361
Diagonal 196091997.26147

Cube

Length = n
Surface area 115356214169978166
Volume 2.6658432921021E+24
Space diagonal 240162667.96692

Equilateral Triangle

Length = n
Perimeter 415973943
Area 8.3251176629666E+15
Altitude 120081333.98346

Triangular Pyramid

Length = n
Surface area 8.3251176629666E+15
Volume 3.1417264490435E+23
Height 65363999.087157