261987788 (number)

261987788 is an even 9-digits composite number following 261987787 and preceding 261987789. In scientific notation, it is written as 2.61987788 × 10^8. The sum of its digits is 56. It has a total of 5 prime factors and 24 positive divisors. There are 128597504 positive integers (up to 261987788) that are relatively prime to 261987788.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million nine hundred eighty-seven thousand seven hundred eighty-eight

Notation

Scientific notation 2.61987788 × 10^8
Engineering notation 2.61987788 × 10^6

Prime Factorization of 261987788

Prime Factorization 2 × 2 × 113 × 107 × 5417

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 130993894
Product of the distinct prime numbers

The prime factorization of 261987788 is 2 × 2 × 113 × 107 × 5417. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 2, 95, 70, 934, 679, 6106, 6244, 51748, 90561, 128179, 963921, 3696224, 9270788, 86161713, 14184504, 970843060, 765232906, 6488917587, 9471273461

Basic calculations (n = 261987788)

Multiplication

n×y
n×2 523975576
n×3 785963364
n×4 1047951152
n×5 1309938940

Division

n÷y
n÷2 130993894
n÷3 87329262.666667
n÷3 65496947
n÷5 52397557.6

Exponentiation

ny
n2 68637601061132944
n3 1.7982213275633E+25
n4 4.7111202794272E+33
n5 1.2342559810091E+42

Nth Root

y√n
2√n 16186.036821903
3√n 639.87284908914
4√n 127.2243562448
5√n 48.267656081061

Divisors of 261987788

1, 2, 4, 107, 113, 214, 226, 428, 452, 5417, 10834, 12091, 21668, 24182, 48364, 579619, 612121, 1159238, 1224242, 2318476, 2448484, 65496947, 130993894, 261987788

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -261987787
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261987788 can be divided by 24 positive divisors. The sum of these divisors (counting 261987788) is 1, the average is 0.041666666666667.

Base conversion 261987788

Base System Value
2 Binary 1111100111011001110111001100
3 Ternary 200020222100200102
4 Quaternary 33213121313030
5 Quinary 1014032102123
6 Senary 41555150232
8 Octal 1747316714
10 Decimal 261987788
12 Duodecimal 738a5378
16 Hexadecimal f9d9dcc
20 Vigesimal 41h8998
36 Base36 4bzb2k

Cryptographic Hash Functions

md5 22f2011a3ed5deb2f1c481f29c0a75b4
sha1 44ec8768929e6c9fb4952e755794125645c25282
sha256 487b3bf9cafbcfbfd40bc6628ac5d74fa6cc0bedddb8e12184b18bce4be5ba97
sha512 f4e94f6d8ccbb6f52cdd1742314619d89bd9d91f37b9d95caf34741acb6d54be6f61fc6f7f12ce4f864216144a5c0ef3bcb78c95c44798b8b0ff0c0d247f41ec
ripemd-160 7e8afd60119a8b8e4fd7a309f8c82a9da07d73f2

261987788 as geometric shapes

Circle

Radius = n
Diameter 523975576
Circumference 1646117820.2221
Area 2.1563138325368E+17

Sphere

Radius = n
Volume 7.532371882935E+25
Surface area 8.6252553301473E+17
Circumference 1646117820.2221

Square

Length = n
Perimeter 1047951152
Area 68637601061132944
Diagonal 370506682.96573

Cube

Length = n
Surface area 411825606366797664
Volume 1.7982213275633E+25
Space diagonal 453776159.77858

Equilateral Triangle

Length = n
Perimeter 785963364
Area 2.9720953086881E+16
Altitude 226888079.88929

Triangular Pyramid

Length = n
Surface area 2.9720953086881E+16
Volume 2.1192241579904E+24
Height 123502227.65524