Properties of the number

Number length
Sum of digits
Multiplication of digits
0
Multiplication of digits not including zero
of 21690 = 216.9
Parity
Even
Is a prime number?
No
Next prime number
Is a composite number?
Yes
Is a semiprime number?
No
Is a linear number?
No
Is a square pyramidal number?
No
Triangular number
(T21690)Is an abundant number?
Yes
Is a Fibonacci number?
No
Is a Harshad number?
(Niven number)Yes
Count of divisors
Sum of divisors
Factoring
(prime factors)2 × 32 × 5 × 241
Exponentiation
2 470456100 3 10204192809000 4 221328942027210000 5 4800624752570184900000 6 104125550883247310481000000 7 2258483198657634164332890000000 8 48986500578884085024380384100000000 9 1062517197555995804178810531129000000000 10 23045998014989548992638400420188010000000000
2√ 147.2752525036 3√ 27.888159310543 4√ 12.135701566189 5√ 7.3663425471571 6√ 5.2809240962679 7√ 4.1635678875896 8√ 3.4836333857323 9√ 3.032540550624 10√ 2.7141006884707 2.4785941128106
Square root and remainder
1472 + 81
Is a perfect square?
No
Is a perfect cube?
No
Natural logarithm
(loge)9.9846066038209
Common logarithm
(log10)4.3362595520142
Binary logarithm
(log2)14.40474243256