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20054548 = 228956333
BaseRepresentation
bin100110010000…
…0001000010100
31101201212200001
41030200020110
520113221143
61553501044
7332314033
oct114401024
941655601
1020054548
1110358308
126871784
1342021c7
14294071a
151b6214d
hex1320214

20054548 has 12 divisors (see below), whose sum is σ = 35490420. Its totient is φ = 9914432.

The previous prime is 20054537. The next prime is 20054549. The reversal of 20054548 is 84545002.

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 18421264 = 1278^2 + 4292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27811 + ... + 28522.

It is an arithmetic number, because the mean of its divisors is an integer number (2957535).

Almost surely, 220054548 is an apocalyptic number.

It is an amenable number.

20054548 is a deficient number, since it is larger than the sum of its proper divisors (15435872).

20054548 is a wasteful number, since it uses less digits than its factorization.

20054548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56426 (or 56424 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 20054548 is about 4478.2304540968. The cubic root of 20054548 is about 271.6883143994.

It can be divided in two parts, 20054 and 548, that added together give a palindrome (20602).

The spelling of 20054548 in words is "twenty million, fifty-four thousand, five hundred forty-eight".

Divisors: 1 2 4 89 178 356 56333 112666 225332 5013637 10027274 20054548