15390981 (number)

15390981 is an odd 8-digits composite number following 15390980 and preceding 15390982. In scientific notation, it is written as 1.5390981 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 10160424 positive integers (up to 15390981) that are relatively prime to 15390981.

Interesting facts

Basic properties

Name

Name fifteen million three hundred ninety thousand nine hundred eighty-one

Notation

Scientific notation 1.5390981 × 10^7
Engineering notation 1.5390981 × 10^6

Prime Factorization of 15390981

Prime Factorization 3 × 3 × 103 × 16603

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 5130327
Product of the distinct prime numbers

The prime factorization of 15390981 is 3 × 3 × 103 × 16603. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 15390981)

Multiplication

n×y
n×2 30781962
n×3 46172943
n×4 61563924
n×5 76954905

Division

n÷y
n÷2 7695490.5
n÷3 5130327
n÷3 3847745.25
n÷5 3078196.2

Exponentiation

ny
n2 236882296142361
n3 3.6458509191635E+21
n4 5.6113222225677E+28
n5 8.6363753712418E+35

Nth Root

y√n
2√n 3923.1340787692
3√n 248.74561526912
4√n 62.634926987817
5√n 27.381249362418

Divisors of 15390981

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 -15390980
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 15390981 can be divided by 12 positive divisors. The sum of these divisors (counting 15390981) is 1, the average is 0.083333333333333.

Base conversion 15390981

Base System Value
2 Binary 111010101101100100000101
3 Ternary 1001221221110100
4 Quaternary 322231210011
5 Quinary 12420002411
6 Senary 1305514313
8 Octal 72554405
10 Decimal 15390981
12 Duodecimal 51a2999
16 Hexadecimal ead905
20 Vigesimal 4g3h91
36 Base36 95vr9

Cryptographic Hash Functions

md5 eb422cbe95d7213b0895c57652bdbb25
sha1 540e99707a08b32a1e21134dcb13589d27a20180
sha256 82a5b39a74e8c7359afe366c3b6515af4e30f636b6bf8de82010db7032cc6524
sha512 40fba1e2e7a6af133e72fcb168721fc24c75c96cf1e02d3b261e06a87fae4b3f419835554fb44d616439d131c26176037da930a83a2050847695a9189de744f7
ripemd-160 2cd50a86093ece8ccb19ea92a9e2e7b66379a409

15390981 as geometric shapes

Circle

Radius = n
Diameter 30781962
Circumference 96704385.68228
Area 7.4418768132632E+14

Sphere

Radius = n
Volume 1.5271704618303E+22
Surface area 2.9767507253053E+15
Circumference 96704385.68228

Square

Length = n
Perimeter 61563924
Area 236882296142361
Diagonal 21766134.068427

Cube

Length = n
Surface area 1421293776854166
Volume 3.6458509191635E+21
Space diagonal 26657961.070327

Equilateral Triangle

Length = n
Perimeter 46172943
Area 1.0257304308304E+14
Altitude 13328980.535164

Triangular Pyramid

Length = n
Surface area 1.0257304308304E+14
Volume 4.2966765135595E+20
Height 7255378.0228089