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54143545 = 531134819
BaseRepresentation
bin1100111010001…
…0101000111001
310202212202222111
43032202220321
5102330043140
65212252321
71225132621
oct316425071
9122782874
1054143545
1128620935
12161710a1
13b2a9401
147295881
154b477ea
hex33a2a39

54143545 has 8 divisors (see below), whose sum is σ = 65183040. Its totient is φ = 43174320.

The previous prime is 54143503. The next prime is 54143549. The reversal of 54143545 is 54534145.

It is a happy number.

54143545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 54143545 - 223 = 45754937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54143549) 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 7 ways as a sum of consecutive naturals, for example, 15855 + ... + 18964.

It is an arithmetic number, because the mean of its divisors is an integer number (8147880).

Almost surely, 254143545 is an apocalyptic number.

It is an amenable number.

54143545 is a deficient number, since it is larger than the sum of its proper divisors (11039495).

54143545 is a wasteful number, since it uses less digits than its factorization.

54143545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35135.

The product of its digits is 24000, while the sum is 31.

The square root of 54143545 is about 7358.2297463452. The cubic root of 54143545 is about 378.3109359888.

The spelling of 54143545 in words is "fifty-four million, one hundred forty-three thousand, five hundred forty-five".

Divisors: 1 5 311 1555 34819 174095 10828709 54143545