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5478505 = 51764453
BaseRepresentation
bin10100111001100001101001
3101022100002121
4110321201221
52400303010
6313231241
764365214
oct24714151
911270077
105478505
11310209a
121a02521
13119a826
14a2877b
157333da
hex539869

5478505 has 8 divisors (see below), whose sum is σ = 6961032. Its totient is φ = 4124928.

The previous prime is 5478503. The next prime is 5478509. The reversal of 5478505 is 5058745.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 5433561 = 212^2 + 2331^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5478505 - 21 = 5478503 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32142 + ... + 32311.

It is an arithmetic number, because the mean of its divisors is an integer number (870129).

Almost surely, 25478505 is an apocalyptic number.

It is an amenable number.

5478505 is a deficient number, since it is larger than the sum of its proper divisors (1482527).

5478505 is a wasteful number, since it uses less digits than its factorization.

5478505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64475.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 5478505 is about 2340.6206441882. The cubic root of 5478505 is about 176.2871624938.

The spelling of 5478505 in words is "five million, four hundred seventy-eight thousand, five hundred five".

Divisors: 1 5 17 85 64453 322265 1095701 5478505