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54450479 = 139938921
BaseRepresentation
bin1100111110110…
…1100100101111
310210110101000102
43033231210233
5102414403404
65223021315
71230551516
oct317554457
9123411012
1054450479
11288104a6
121629a83b
13b386025
14733567d
154ba871e
hex33ed92f

54450479 has 4 divisors (see below), whose sum is σ = 54490800. Its totient is φ = 54410160.

The previous prime is 54450457. The next prime is 54450509. The reversal of 54450479 is 97405445.

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 54450479 - 224 = 37673263 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 (54450079) 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, 18062 + ... + 20859.

It is an arithmetic number, because the mean of its divisors is an integer number (13622700).

Almost surely, 254450479 is an apocalyptic number.

54450479 is a deficient number, since it is larger than the sum of its proper divisors (40321).

54450479 is a wasteful number, since it uses less digits than its factorization.

54450479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40320.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 54450479 is about 7379.0567825434. The cubic root of 54450479 is about 379.0244575478.

The spelling of 54450479 in words is "fifty-four million, four hundred fifty thousand, four hundred seventy-nine".

Divisors: 1 1399 38921 54450479