129847981 (number)

129847981 is an odd 9-digits composite number following 129847980 and preceding 129847982. In scientific notation, it is written as 1.29847981 × 10^8. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 126746928 positive integers (up to 129847981) that are relatively prime to 129847981.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million eight hundred forty-seven thousand nine hundred eighty-one

Notation

Scientific notation 1.29847981 × 10^8
Engineering notation 1.29847981 × 10^6

Prime Factorization of 129847981

Prime Factorization 47 × 397 × 6959

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 129847981
Product of the distinct prime numbers

The prime factorization of 129847981 is 47 × 397 × 6959. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 129847981)

Multiplication

n×y
n×2 259695962
n×3 389543943
n×4 519391924
n×5 649239905

Division

n÷y
n÷2 64923990.5
n÷3 43282660.333333
n÷3 32461995.25
n÷5 25969596.2

Exponentiation

ny
n2 16860498169776361
n3 2.1893016459997E+24
n4 2.8427639853303E+32
n5 3.6912716395466E+40

Nth Root

y√n
2√n 11395.085826794
3√n 506.38216402028
4√n 106.74776731526
5√n 41.945660771088

Divisors of 129847981

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 -129847980
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 129847981 can be divided by 8 positive divisors. The sum of these divisors (counting 129847981) is 1, the average is 0.125.

Base conversion 129847981

Base System Value
2 Binary 111101111010101001010101101
3 Ternary 100001022221221111
4 Quaternary 13233111022231
5 Quinary 231220113411
6 Senary 20515032021
8 Octal 757251255
10 Decimal 129847981
12 Duodecimal 3759b611
16 Hexadecimal 7bd52ad
20 Vigesimal 20bajj1
36 Base36 25b3cd

Cryptographic Hash Functions

md5 216bc42a747c9c1eb492b819c143e71f
sha1 534910a23894406b78cfef4bace57524f5ae1aa5
sha256 032ac134f8d311d70e33289059e0281809da90fb3b0f5c3037462a30e9bfc321
sha512 13512fa7c6afd7469598b15fb073137c1e7c670edb665bc22aaf5ae6c465425f424ed95f4f23206dd3e76f07672cb5e84f7c36ca1c4b8f0f97c9aa462f0656df
ripemd-160 decf80a6d4ff29e137abd6bff8ac679d4db8cea6

129847981 as geometric shapes

Circle

Radius = n
Diameter 259695962
Circumference 815858926.38613
Area 5.2968817186034E+16

Sphere

Radius = n
Volume 9.1705252900861E+24
Surface area 2.1187526874413E+17
Circumference 815858926.38613

Square

Length = n
Perimeter 519391924
Area 16860498169776361
Diagonal 183632775.77696

Cube

Length = n
Surface area 101162989018658166
Volume 2.1893016459997E+24
Space diagonal 224903300.35224

Equilateral Triangle

Length = n
Perimeter 389543943
Area 7.3008098677437E+15
Altitude 112451650.17612

Triangular Pyramid

Length = n
Surface area 7.3008098677437E+15
Volume 2.5801167332487E+23
Height 61210925.258988