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54213755 = 543252157
BaseRepresentation
bin1100111011001…
…1110001111011
310210000100021212
43032303301323
5102334320010
65213553335
71225544411
oct316636173
9123010255
1054213755
1128669662
12161a584b
13b30235b
1472b32b1
154b5d505
hex33b3c7b

54213755 has 8 divisors (see below), whose sum is σ = 66569712. Its totient is φ = 42362208.

The previous prime is 54213739. The next prime is 54213773. The reversal of 54213755 is 55731245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54213755 - 24 = 54213739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125864 + ... + 126293.

It is an arithmetic number, because the mean of its divisors is an integer number (8321214).

Almost surely, 254213755 is an apocalyptic number.

54213755 is a deficient number, since it is larger than the sum of its proper divisors (12355957).

54213755 is a wasteful number, since it uses less digits than its factorization.

54213755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252205.

The product of its digits is 21000, while the sum is 32.

The square root of 54213755 is about 7362.9990493005. Note that the first 3 decimals coincide. The cubic root of 54213755 is about 378.4743887642.

The spelling of 54213755 in words is "fifty-four million, two hundred thirteen thousand, seven hundred fifty-five".

Divisors: 1 5 43 215 252157 1260785 10842751 54213755