21887957 (number)

21887957 is an odd 8-digits composite number following 21887956 and preceding 21887958. In scientific notation, it is written as 2.1887957 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors. There are 17317440 positive integers (up to 21887957) that are relatively prime to 21887957.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1887957 × 10^7
Engineering notation 2.1887957 × 10^6

Prime Factorization of 21887957

Prime Factorization 13 × 7 × 7 × 34361

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3126851
Product of the distinct prime numbers

The prime factorization of 21887957 is 13 × 7 × 7 × 34361. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 49, 25, 711, 530, 2478, 4823, 33176, 41689, 841492, 195540, 1645576, 1302753, 97256034, 43870579, 251040112, 459376065, 3253616846, 9410181170

Basic calculations (n = 21887957)

Multiplication

n×y
n×2 43775914
n×3 65663871
n×4 87551828
n×5 109439785

Division

n÷y
n÷2 10943978.5
n÷3 7295985.6666667
n÷3 5471989.25
n÷5 4377591.4

Exponentiation

ny
n2 479082661633849
n3 1.0486140697287E+22
n4 2.2952019667817E+29
n5 5.0237281955234E+36

Nth Root

y√n
2√n 4678.456689978
3√n 279.72744310778
4√n 68.399244805612
5√n 29.379273036896

Divisors of 21887957

1, 7, 13, 49, 91, 637, 34361, 240527, 446693, 1683689, 3126851, 21887957

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 -21887956
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 21887957 can be divided by 12 positive divisors. The sum of these divisors (counting 21887957) is 1, the average is 0.083333333333333.

Base conversion 21887957

Base System Value
2 Binary 1010011011111101111010101
3 Ternary 1112012000122002
4 Quaternary 1103133233111
5 Quinary 21100403312
6 Senary 2101045045
8 Octal 123375725
10 Decimal 21887957
12 Duodecimal 73b6785
16 Hexadecimal 14dfbd5
20 Vigesimal 6gfjhh
36 Base36 d14ut

Cryptographic Hash Functions

md5 cf338824a2e1a4e9d91fb2ceb3371743
sha1 7b841d42d95f5b079cab6484e786fdc0888eb64e
sha256 930a55d2a42bbfaa53dba17e70ac759f80c2dfbeea4612f566e8c6f492ba60b1
sha512 d3f59ea1bea02e476a93048d28150cf508ca6c3d2e9adb172b9f3a931c39ee8bd5c33c44a7457c45a7889278ee21f11072b27c147f0787952abcfcca64eadb0f
ripemd-160 c2fedb7c5c781a620a2e93c261fa5bd8755f7730

21887957 as geometric shapes

Circle

Radius = n
Diameter 43775914
Circumference 137526089.82658
Area 1.5050825702511E+15

Sphere

Radius = n
Volume 4.3924243438809E+22
Surface area 6.0203302810046E+15
Circumference 137526089.82658

Square

Length = n
Perimeter 87551828
Area 479082661633849
Diagonal 30954245.642039

Cube

Length = n
Surface area 2874495969803094
Volume 1.0486140697287E+22
Space diagonal 37911053.597883

Equilateral Triangle

Length = n
Perimeter 65663871
Area 2.0744887774379E+14
Altitude 18955526.798941

Triangular Pyramid

Length = n
Surface area 2.0744887774379E+14
Volume 1.235803532588E+21
Height 10318081.88068