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54248390 = 2572110711
BaseRepresentation
bin1100111011110…
…0001111000110
310210002002210122
43032330033012
5102341422030
65214421542
71226050400
oct316741706
9123062718
1054248390
1128692689
12162018b2
13b315051
1472c1b70
154b688e5
hex33bc3c6

54248390 has 24 divisors (see below), whose sum is σ = 113590512. Its totient is φ = 18599280.

The previous prime is 54248351. The next prime is 54248407. The reversal of 54248390 is 9384245.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54248390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54866 + ... + 55845.

It is an arithmetic number, because the mean of its divisors is an integer number (4732938).

Almost surely, 254248390 is an apocalyptic number.

54248390 is an abundant number, since it is smaller than the sum of its proper divisors (59342122).

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

54248390 is a wasteful number, since it uses less digits than its factorization.

54248390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110732 (or 110725 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 54248390 is about 7365.3506365957. The cubic root of 54248390 is about 378.5549689906.

The spelling of 54248390 in words is "fifty-four million, two hundred forty-eight thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 110711 221422 553555 774977 1107110 1549954 3874885 5424839 7749770 10849678 27124195 54248390