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20546041 = 50340847
BaseRepresentation
bin100111001100…
…0000111111001
31102122211212111
41032120013321
520224433131
62012212321
7336431665
oct116300771
942584774
1020546041
11106635aa
126a6a0a1
134344b29
142a2b8a5
151c0cab1
hex13981f9

20546041 has 4 divisors (see below), whose sum is σ = 20587392. Its totient is φ = 20504692.

The previous prime is 20546023. The next prime is 20546077. The reversal of 20546041 is 14064502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14064502 = 27032251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20546041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20546341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19921 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (5146848).

Almost surely, 220546041 is an apocalyptic number.

It is an amenable number.

20546041 is a deficient number, since it is larger than the sum of its proper divisors (41351).

20546041 is an equidigital number, since it uses as much as digits as its factorization.

20546041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41350.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20546041 is about 4532.7740954078. The cubic root of 20546041 is about 273.8899206172.

The spelling of 20546041 in words is "twenty million, five hundred forty-six thousand, forty-one".

Divisors: 1 503 40847 20546041