261640388 (number)

261640388 is an even 9-digits composite number following 261640387 and preceding 261640389. In scientific notation, it is written as 2.61640388 × 10^8. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 130406880 positive integers (up to 261640388) that are relatively prime to 261640388.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million six hundred forty thousand three hundred eighty-eight

Notation

Scientific notation 2.61640388 × 10^8
Engineering notation 2.61640388 × 10^6

Prime Factorization of 261640388

Prime Factorization 2 × 2 × 317 × 206341

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 130820194
Product of the distinct prime numbers

The prime factorization of 261640388 is 2 × 2 × 317 × 206341. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 43, 90, 349, 202, 9313, 8660, 2507, 55752, 425613, 812728, 306600, 919925, 79660941, 47503497, 553237977, 154730846, 1071358669, 9433751594

Basic calculations (n = 261640388)

Multiplication

n×y
n×2 523280776
n×3 784921164
n×4 1046561552
n×5 1308201940

Division

n÷y
n÷2 130820194
n÷3 87213462.666667
n÷3 65410097
n÷5 52328077.6

Exponentiation

ny
n2 68455692632790544
n3 1.7910773981252E+25
n4 4.6861818538351E+33
n5 1.226094438476E+42

Nth Root

y√n
2√n 16175.301790075
3√n 639.58989677281
4√n 127.18215987345
5√n 48.254848549164

Divisors of 261640388

1, 2, 4, 317, 634, 1268, 206341, 412682, 825364, 65410097, 130820194, 261640388

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 -261640387
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 261640388 can be divided by 12 positive divisors. The sum of these divisors (counting 261640388) is 1, the average is 0.083333333333333.

Base conversion 261640388

Base System Value
2 Binary 1111100110000101000011000100
3 Ternary 200020022201010202
4 Quaternary 33212011003010
5 Quinary 1013434443023
6 Senary 41543510032
8 Octal 1746050304
10 Decimal 261640388
12 Duodecimal 73758318
16 Hexadecimal f9850c4
20 Vigesimal 41f50j8
36 Base36 4brv0k

Cryptographic Hash Functions

md5 022cd7d796ccf8e8628897da9bcde252
sha1 e7e8b3f197bf10a892d7376abf899312c12340c8
sha256 e74d230971e7374a382e13499c202f5f807b3cf8311f393c1eafd12a476b9370
sha512 754e62f9e6c5e46932c87f496097753634eee682b74cb005fe2e8757bd6a9796b3dccb726a3c7bb70a319ebfd7051952cc25aeba48064945096415bd665731ba
ripemd-160 dd711eb9adfa1af6180529665286787db9dd4d6b

261640388 as geometric shapes

Circle

Radius = n
Diameter 523280776
Circumference 1643935041.6464
Area 2.1505990107158E+17

Sphere

Radius = n
Volume 7.5024474612812E+25
Surface area 8.602396042863E+17
Circumference 1643935041.6464

Square

Length = n
Perimeter 1046561552
Area 68455692632790544
Diagonal 370015385.17416

Cube

Length = n
Surface area 410734155796743264
Volume 1.7910773981252E+25
Space diagonal 453174445.32803

Equilateral Triangle

Length = n
Perimeter 784921164
Area 2.9642184426828E+16
Altitude 226587222.66402

Triangular Pyramid

Length = n
Surface area 2.9642184426828E+16
Volume 2.1108049564072E+24
Height 123338461.72472