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21412795 = 55380803
BaseRepresentation
bin101000110101…
…1101110111011
31111021212211111
41101223232323
520440202140
62042541151
7350001655
oct121535673
944255744
1021412795
11110a5828
1272077b7
1345894c1
142bb56d5
151d2e7ea
hex146bbbb

21412795 has 8 divisors (see below), whose sum is σ = 26180496. Its totient is φ = 16806816.

The previous prime is 21412789. The next prime is 21412799. The reversal of 21412795 is 59721412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21412795 - 211 = 21410747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (21412799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40137 + ... + 40666.

It is an arithmetic number, because the mean of its divisors is an integer number (3272562).

Almost surely, 221412795 is an apocalyptic number.

21412795 is a deficient number, since it is larger than the sum of its proper divisors (4767701).

21412795 is an equidigital number, since it uses as much as digits as its factorization.

21412795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80861.

The product of its digits is 5040, while the sum is 31.

The square root of 21412795 is about 4627.3961360575. The cubic root of 21412795 is about 277.6884308499.

The spelling of 21412795 in words is "twenty-one million, four hundred twelve thousand, seven hundred ninety-five".

Divisors: 1 5 53 265 80803 404015 4282559 21412795