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479305 = 5257373
BaseRepresentation
bin1110101000001001001
3220100111001
41311001021
5110314210
614135001
74034251
oct1650111
9810431
10479305
112a8122
121b1461
1313a218
14c6961
159703a
hex75049

479305 has 8 divisors (see below), whose sum is σ = 578952. Its totient is φ = 380928.

The previous prime is 479299. The next prime is 479309. The reversal of 479305 is 503974.

It can be written as a sum of positive squares in 4 ways, for example, as 186624 + 292681 = 432^2 + 541^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-479305 is a prime.

It is a Duffinian number.

479305 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (72369).

2479305 is an apocalyptic number.

It is an amenable number.

479305 is a deficient number, since it is larger than the sum of its proper divisors (99647).

479305 is a wasteful number, since it uses less digits than its factorization.

479305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 479305 is about 692.3185682906. The cubic root of 479305 is about 78.2595452227.

It can be divided in two parts, 479 and 305, that added together give a square (784 = 282).

The spelling of 479305 in words is "four hundred seventy-nine thousand, three hundred five".

Divisors: 1 5 257 373 1285 1865 95861 479305