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20554060 = 2251027703
BaseRepresentation
bin100111001101…
…0000101001100
31102200020212111
41032122011030
520230212220
62012313404
7336464242
oct116320514
942606774
1020554060
111066962a
126a72864
134348687
142a30792
151c1015a
hex139a14c

20554060 has 12 divisors (see below), whose sum is σ = 43163568. Its totient is φ = 8221616.

The previous prime is 20554049. The next prime is 20554063. The reversal of 20554060 is 6045502.

It is not an unprimeable number, because it can be changed into a prime (20554063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513832 + ... + 513871.

It is an arithmetic number, because the mean of its divisors is an integer number (3596964).

Almost surely, 220554060 is an apocalyptic number.

20554060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20554060 is an abundant number, since it is smaller than the sum of its proper divisors (22609508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20554060 is a wasteful number, since it uses less digits than its factorization.

20554060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027712 (or 1027710 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20554060 is about 4533.6585667648. The cubic root of 20554060 is about 273.9255485288.

Adding to 20554060 its reverse (6045502), we get a palindrome (26599562).

The spelling of 20554060 in words is "twenty million, five hundred fifty-four thousand, sixty".

Divisors: 1 2 4 5 10 20 1027703 2055406 4110812 5138515 10277030 20554060