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54207145 = 513182759
BaseRepresentation
bin1100111011001…
…0001010101001
310210000000020001
43032302022221
5102334112040
65213503001
71225516216
oct316621251
9123000201
1054207145
11286646a3
12161a1a61
13b2cc345
1472b0b0d
154b5b59a
hex33b22a9

54207145 has 8 divisors (see below), whose sum is σ = 65545920. Its totient is φ = 43034160.

The previous prime is 54207143. The next prime is 54207157. The reversal of 54207145 is 54170245.

54207145 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 54207145 - 21 = 54207143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54207143) 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, 40725 + ... + 42034.

It is an arithmetic number, because the mean of its divisors is an integer number (8193240).

Almost surely, 254207145 is an apocalyptic number.

It is an amenable number.

54207145 is a deficient number, since it is larger than the sum of its proper divisors (11338775).

54207145 is a wasteful number, since it uses less digits than its factorization.

54207145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82895.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 54207145 is about 7362.5501696084. The cubic root of 54207145 is about 378.4590063372.

The spelling of 54207145 in words is "fifty-four million, two hundred seven thousand, one hundred forty-five".

Divisors: 1 5 131 655 82759 413795 10841429 54207145