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478479 = 3349457
BaseRepresentation
bin1110100110100001111
3220022100110
41310310033
5110302404
614131103
74031661
oct1646417
9808313
10478479
112a7541
121b0a93
13139a31
14c6531
1596b89
hex74d0f

478479 has 8 divisors (see below), whose sum is σ = 641200. Its totient is φ = 317376.

The previous prime is 478459. The next prime is 478481. The reversal of 478479 is 974874.

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

It is not a de Polignac number, because 478479 - 27 = 478351 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478479.

It is not an unprimeable number, because it can be changed into a prime (478459) 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, 819 + ... + 1275.

It is an arithmetic number, because the mean of its divisors is an integer number (80150).

2478479 is an apocalyptic number.

478479 is a deficient number, since it is larger than the sum of its proper divisors (162721).

478479 is a wasteful number, since it uses less digits than its factorization.

478479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809.

The product of its digits is 56448, while the sum is 39.

The square root of 478479 is about 691.7217648737. The cubic root of 478479 is about 78.2145637368.

The spelling of 478479 in words is "four hundred seventy-eight thousand, four hundred seventy-nine".

Divisors: 1 3 349 457 1047 1371 159493 478479