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54102143 = 173182479
BaseRepresentation
bin1100111001100…
…0100001111111
310202210200012002
43032120201333
5102322232033
65211332515
71224601124
oct316304177
9122720162
1054102143
11285a2817
121615113b
13b293604
14728474b
154b3a3e8
hex339887f

54102143 has 4 divisors (see below), whose sum is σ = 57284640. Its totient is φ = 50919648.

The previous prime is 54102133. The next prime is 54102149. The reversal of 54102143 is 34120145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54102143 - 210 = 54101119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54102149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1591223 + ... + 1591256.

It is an arithmetic number, because the mean of its divisors is an integer number (14321160).

Almost surely, 254102143 is an apocalyptic number.

54102143 is a deficient number, since it is larger than the sum of its proper divisors (3182497).

54102143 is a wasteful number, since it uses less digits than its factorization.

54102143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182496.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 54102143 is about 7355.4158957873. The cubic root of 54102143 is about 378.2144835962.

Adding to 54102143 its reverse (34120145), we get a palindrome (88222288).

It can be divided in two parts, 54102 and 143, that added together give a palindrome (54245).

The spelling of 54102143 in words is "fifty-four million, one hundred two thousand, one hundred forty-three".

Divisors: 1 17 3182479 54102143