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20910041 = 412232287
BaseRepresentation
bin100111111000…
…0111111011001
31110100100011222
41033300333121
520323110131
62024101425
7342506135
oct117607731
943310158
1020910041
1110892029
127004875
134441709
142ac43c5
151c8087b
hex13f0fd9

20910041 has 8 divisors (see below), whose sum is σ = 21525504. Its totient is φ = 20299680.

The previous prime is 20910031. The next prime is 20910067. The reversal of 20910041 is 14001902.

It is a happy number.

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 20910041 - 222 = 16715737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20910011) 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, 8000 + ... + 10286.

It is an arithmetic number, because the mean of its divisors is an integer number (2690688).

Almost surely, 220910041 is an apocalyptic number.

It is an amenable number.

20910041 is a deficient number, since it is larger than the sum of its proper divisors (615463).

20910041 is a wasteful number, since it uses less digits than its factorization.

20910041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 20910041 is about 4572.7498291509. The cubic root of 20910041 is about 275.4979012865.

Adding to 20910041 its reverse (14001902), we get a palindrome (34911943).

The spelling of 20910041 in words is "twenty million, nine hundred ten thousand, forty-one".

Divisors: 1 41 223 2287 9143 93767 510001 20910041