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54478148 = 2273186569
BaseRepresentation
bin1100111111010…
…0010101000100
310210111202222012
43033310111010
5102421300043
65223353352
71231025264
oct317642504
9123452865
1054478148
112882a26a
12162b2858
13b3957ba
1473417a4
154bb1a18
hex33f4544

54478148 has 12 divisors (see below), whose sum is σ = 96643260. Its totient is φ = 26865792.

The previous prime is 54478147. The next prime is 54478199. The reversal of 54478148 is 84187445.

54478148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 29398084 + 25080064 = 5422^2 + 5008^2 .

It is a super-3 number, since 3×544781483 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (54478141) 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, 92993 + ... + 93576.

It is an arithmetic number, because the mean of its divisors is an integer number (8053605).

Almost surely, 254478148 is an apocalyptic number.

It is an amenable number.

54478148 is a deficient number, since it is larger than the sum of its proper divisors (42165112).

54478148 is a wasteful number, since it uses less digits than its factorization.

54478148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186646 (or 186644 counting only the distinct ones).

The product of its digits is 143360, while the sum is 41.

The square root of 54478148 is about 7380.9313775431. The cubic root of 54478148 is about 379.0886470771.

The spelling of 54478148 in words is "fifty-four million, four hundred seventy-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 73 146 292 186569 373138 746276 13619537 27239074 54478148