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54450887 = 139391733
BaseRepresentation
bin1100111110110…
…1101011000111
310210110101120112
43033231223013
5102414412022
65223023235
71230552641
oct317555307
9123411515
1054450887
1128810837
121629ab1b
13b38627a
147335891
154ba88e2
hex33edac7

54450887 has 4 divisors (see below), whose sum is σ = 54842760. Its totient is φ = 54059016.

The previous prime is 54450859. The next prime is 54450889. The reversal of 54450887 is 78805445.

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 54450887 - 214 = 54434503 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 (54450889) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 195728 + ... + 196005.

It is an arithmetic number, because the mean of its divisors is an integer number (13710690).

Almost surely, 254450887 is an apocalyptic number.

54450887 is a deficient number, since it is larger than the sum of its proper divisors (391873).

54450887 is a wasteful number, since it uses less digits than its factorization.

54450887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391872.

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 54450887 is about 7379.0844283014. The cubic root of 54450887 is about 379.0254042281.

The spelling of 54450887 in words is "fifty-four million, four hundred fifty thousand, eight hundred eighty-seven".

Divisors: 1 139 391733 54450887