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54478844 = 2271945673
BaseRepresentation
bin1100111111010…
…0011111111100
310210111210220222
43033310133330
5102421310334
65223400512
71231030310
oct317643774
9123453828
1054478844
112882a842
12162b3138
13b395c04
147341b40
154bb1d2e
hex33f47fc

54478844 has 12 divisors (see below), whose sum is σ = 108957744. Its totient is φ = 23348064.

The previous prime is 54478841. The next prime is 54478861. The reversal of 54478844 is 44887445.

54478844 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 54478795 and 54478804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54478841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972809 + ... + 972864.

It is an arithmetic number, because the mean of its divisors is an integer number (9079812).

Almost surely, 254478844 is an apocalyptic number.

It is an amenable number.

54478844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54478844 is a wasteful number, since it uses less digits than its factorization.

54478844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945684 (or 1945682 counting only the distinct ones).

The product of its digits is 573440, while the sum is 44.

The square root of 54478844 is about 7380.9785259138. The cubic root of 54478844 is about 379.0902614527.

The spelling of 54478844 in words is "fifty-four million, four hundred seventy-eight thousand, eight hundred forty-four".

Divisors: 1 2 4 7 14 28 1945673 3891346 7782692 13619711 27239422 54478844