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478413469 = 588181349
BaseRepresentation
bin11100100001000…
…000001010011101
31020100012220220101
4130201000022131
51434433212334
6115250021101
714566306312
oct3441001235
91210186811
10478413469
11226063136
12114277791
13781677c1
1447776d09
152c002214
hex1c84029d

478413469 has 4 divisors (see below), whose sum is σ = 478500700. Its totient is φ = 478326240.

The previous prime is 478413437. The next prime is 478413499. The reversal of 478413469 is 964314874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964314874 = 2482157437.

It can be written as a sum of positive squares in 2 ways, for example, as 160326244 + 318087225 = 12662^2 + 17835^2 .

It is a cyclic number.

It is not a de Polignac number, because 478413469 - 25 = 478413437 is a prime.

It is a super-2 number, since 2×4784134692 = 457758894641227922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478413499) 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 3 ways as a sum of consecutive naturals, for example, 34794 + ... + 46555.

It is an arithmetic number, because the mean of its divisors is an integer number (119625175).

Almost surely, 2478413469 is an apocalyptic number.

It is an amenable number.

478413469 is a deficient number, since it is larger than the sum of its proper divisors (87231).

478413469 is an equidigital number, since it uses as much as digits as its factorization.

478413469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87230.

The product of its digits is 580608, while the sum is 46.

The square root of 478413469 is about 21872.6648810793. The cubic root of 478413469 is about 782.1099289909.

The spelling of 478413469 in words is "four hundred seventy-eight million, four hundred thirteen thousand, four hundred sixty-nine".

Divisors: 1 5881 81349 478413469