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56478105 = 3251255069
BaseRepresentation
bin1101011101110…
…0100110011001
310221021101101200
43113130212121
5103424244410
65334304413
71254025125
oct327344631
9127241350
1056478105
1129975922
1216ab8109
13b915bc8
147702585
154e593c0
hex35dc999

56478105 has 12 divisors (see below), whose sum is σ = 97895460. Its totient is φ = 30121632.

The previous prime is 56478101. The next prime is 56478139. The reversal of 56478105 is 50187465.

56478105 is a `hidden beast` number, since 5 + 647 + 8 + 1 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18766224 + 37711881 = 4332^2 + 6141^2 .

It is not a de Polignac number, because 56478105 - 22 = 56478101 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 56478105.

It is not an unprimeable number, because it can be changed into a prime (56478101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627490 + ... + 627579.

It is an arithmetic number, because the mean of its divisors is an integer number (8157955).

Almost surely, 256478105 is an apocalyptic number.

It is an amenable number.

56478105 is a deficient number, since it is larger than the sum of its proper divisors (41417355).

56478105 is a wasteful number, since it uses less digits than its factorization.

56478105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255080 (or 1255077 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 56478105 is about 7515.1916143236. The cubic root of 56478105 is about 383.6719406777.

The spelling of 56478105 in words is "fifty-six million, four hundred seventy-eight thousand, one hundred five".

Divisors: 1 3 5 9 15 45 1255069 3765207 6275345 11295621 18826035 56478105