21887955 (number)

21887955 is an odd 8-digits composite number following 21887954 and preceding 21887956. In scientific notation, it is written as 2.1887955 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 11508480 positive integers (up to 21887955) that are relatively prime to 21887955.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred eighty-seven thousand nine hundred fifty-five

Notation

Scientific notation 2.1887955 × 10^7
Engineering notation 2.1887955 × 10^6

Prime Factorization of 21887955

Prime Factorization 45 × 3 × 73 × 2221

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21887955
Product of the distinct prime numbers

The prime factorization of 21887955 is 45 × 3 × 73 × 2221. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 2, 81, 459, 605, 8506, 4128, 86845, 21265, 278244, 370291, 1646141, 5734576, 7713484, 49201795, 198213973, 843443841, 1585812489, 9125129708

Basic calculations (n = 21887955)

Multiplication

n×y
n×2 43775910
n×3 65663865
n×4 87551820
n×5 109439775

Division

n÷y
n÷2 10943977.5
n÷3 7295985
n÷3 5471988.75
n÷5 4377591

Exponentiation

ny
n2 479082574082025
n3 1.0486137822792E+22
n4 2.2952011278906E+29
n5 5.0237259003218E+36

Nth Root

y√n
2√n 4678.4564762323
3√n 279.7274345878
4√n 68.399243243126
5√n 29.379272499993

Divisors of 21887955

1, 3, 45, 73, 135, 219, 2221, 3285, 6663, 9855, 99945, 162133, 299835, 486399, 7295985, 21887955

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21887954
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21887955 can be divided by 16 positive divisors. The sum of these divisors (counting 21887955) is 1, the average is 0.0625.

Base conversion 21887955

Base System Value
2 Binary 1010011011111101111010011
3 Ternary 1112012000122000
4 Quaternary 1103133233103
5 Quinary 21100403310
6 Senary 2101045043
8 Octal 123375723
10 Decimal 21887955
12 Duodecimal 73b6783
16 Hexadecimal 14dfbd3
20 Vigesimal 6gfjhf
36 Base36 d14ur

Cryptographic Hash Functions

md5 31351f81ad31c72e49ea0c6dba684d59
sha1 7ea4fa075d83cc442c85b2a649e88822f3a31143
sha256 6ae983ff2c6954f0c98c94ce03e6a0f82f35d80370cf147a47439d101956a8c8
sha512 9cb8522c258f3ecaac825f804530a8a00c113d0d0787c413e143b294ea62ce8ec512dd77c2850a2c40277f432114e2a8c4e34643a54619d58cf1c0fbd9ea63fd
ripemd-160 2d1afa4a298b47c48d611b7879cef4a5c86c644d

21887955 as geometric shapes

Circle

Radius = n
Diameter 43775910
Circumference 137526077.26021
Area 1.505082295199E+15

Sphere

Radius = n
Volume 4.3924231398149E+22
Surface area 6.0203291807959E+15
Circumference 137526077.26021

Square

Length = n
Perimeter 87551820
Area 479082574082025
Diagonal 30954242.813612

Cube

Length = n
Surface area 2874495444492150
Volume 1.0486137822792E+22
Space diagonal 37911050.133781

Equilateral Triangle

Length = n
Perimeter 65663865
Area 2.0744883983274E+14
Altitude 18955525.066891

Triangular Pyramid

Length = n
Surface area 2.0744883983274E+14
Volume 1.2358031938254E+21
Height 10318080.937871