261377981 (number)

261377981 is an odd 9-digits prime number following 261377980 and preceding 261377982. In scientific notation, it is written as 2.61377981 × 10^8. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 261377980 positive integers (up to 261377981) that are relatively prime to 261377981.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million three hundred seventy-seven thousand nine hundred eighty-one

Notation

Scientific notation 2.61377981 × 10^8
Engineering notation 2.61377981 × 10^6

Prime Factorization of 261377981

Prime Factorization 261377981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 261377981
Product of the distinct prime numbers

The prime factorization of 261377981 is 261377981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 3, 22, 9, 485, 913, 1862, 4733, 93756, 79636, 521978, 592315, 7454556, 8318043, 15547759, 65235964, 789587881, 779150201, 8663107838, 1445885063

Basic calculations (n = 261377981)

Multiplication

n×y
n×2 522755962
n×3 784133943
n×4 1045511924
n×5 1306889905

Division

n÷y
n÷2 130688990.5
n÷3 87125993.666667
n÷3 65344495.25
n÷5 52275596.2

Exponentiation

ny
n2 68318448951636361
n3 1.785693825203E+25
n4 4.6674104671573E+33
n5 1.2199583244039E+42

Nth Root

y√n
2√n 16167.188407389
3√n 639.37600394735
4√n 127.15025917154
5√n 48.245165416522

Divisors of 261377981

1, 261377981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 261377982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 130688991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 16167.188438315
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999923482
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261377981 can be divided by 2 positive divisors. The sum of these divisors (counting 261377981) is 261377982, the average is 130688991.

Base conversion 261377981

Base System Value
2 Binary 1111100101000100111110111101
3 Ternary 200012211101011222
4 Quaternary 33211010332331
5 Quinary 1013403043411
6 Senary 41534123125
8 Octal 1745047675
10 Decimal 261377981
12 Duodecimal 736504a5
16 Hexadecimal f944fbd
20 Vigesimal 41dc4j1
36 Base36 4bm8jh

Cryptographic Hash Functions

md5 a0bc776c9c68a410fac9f7b5fad7542e
sha1 f72b3ef9b2b6d0a7e4d432b03c9da3dcf0da86a3
sha256 7fbdc44d5618051c214b79fa073600ec7ca6e8b460c95e6554d9dd376a30c946
sha512 251c4b9f1dd7d1a6a137a377d92f1f72aeeb60e5af9cc7b237a8e38d39bf68e051cb6e2ede0914535a388108ce1c77d4f64c652bf64cde9e93aeaf7c5b4d06ba
ripemd-160 775607df22a102ad7295c80a0976ada30ecab76a

261377981 as geometric shapes

Circle

Radius = n
Diameter 522755962
Circumference 1642286289.8395
Area 2.1462873733111E+17

Sphere

Radius = n
Volume 7.479896803758E+25
Surface area 8.5851494932444E+17
Circumference 1642286289.8395

Square

Length = n
Perimeter 1045511924
Area 68318448951636361
Diagonal 369644285.6359

Cube

Length = n
Surface area 409910693709818166
Volume 1.785693825203E+25
Space diagonal 452719943.07177

Equilateral Triangle

Length = n
Perimeter 784133943
Area 2.9582756169634E+16
Altitude 226359971.53589

Triangular Pyramid

Length = n
Surface area 2.9582756169634E+16
Volume 2.1044603548733E+24
Height 123214761.87863