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21410741 = 114094759
BaseRepresentation
bin101000110101…
…1001110110101
31111021210000102
41101223032311
520440120431
62042523445
7346662662
oct121531665
944253012
1021410741
11110a4230
127206585
1345885a1
142bb4a69
151d2ddcb
hex146b3b5

21410741 has 8 divisors (see below), whose sum is σ = 23419200. Its totient is φ = 19412640.

The previous prime is 21410731. The next prime is 21410747. The reversal of 21410741 is 14701412.

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 21410741 - 214 = 21394357 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410747) 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, 2120 + ... + 6878.

It is an arithmetic number, because the mean of its divisors is an integer number (2927400).

Almost surely, 221410741 is an apocalyptic number.

It is an amenable number.

21410741 is a deficient number, since it is larger than the sum of its proper divisors (2008459).

21410741 is a wasteful number, since it uses less digits than its factorization.

21410741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5179.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 21410741 is about 4627.1741916638. The cubic root of 21410741 is about 277.6795515751.

The spelling of 21410741 in words is "twenty-one million, four hundred ten thousand, seven hundred forty-one".

Divisors: 1 11 409 4499 4759 52349 1946431 21410741