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54244420 = 2253187491
BaseRepresentation
bin1100111011101…
…1010001000100
310210001220100121
43032323101010
5102341310140
65214351324
71226032666
oct316732104
9123056317
1054244420
112868a6aa
12161bb544
13b3132b9
1472c0536
154b6764a
hex33bb444

54244420 has 24 divisors (see below), whose sum is σ = 117589248. Its totient is φ = 20997600.

The previous prime is 54244417. The next prime is 54244441. The reversal of 54244420 is 2444245.

It is a happy number.

54244420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×542444202 = 5884914202272800, which contains 22 as substring.

It is a zygodrome in base 16.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43126 + ... + 44365.

It is an arithmetic number, because the mean of its divisors is an integer number (4899552).

Almost surely, 254244420 is an apocalyptic number.

It is an amenable number.

54244420 is an abundant number, since it is smaller than the sum of its proper divisors (63344828).

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

54244420 is a wasteful number, since it uses less digits than its factorization.

54244420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87531 (or 87529 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 54244420 is about 7365.0811265050. The cubic root of 54244420 is about 378.5457343086.

Adding to 54244420 its reverse (2444245), we get a palindrome (56688665).

The spelling of 54244420 in words is "fifty-four million, two hundred forty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 87491 174982 349964 437455 874910 1749820 2712221 5424442 10848884 13561105 27122210 54244420