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478980753 = 3159660251
BaseRepresentation
bin11100100011001…
…010101010010001
31020101021202001220
4130203022222101
51440104341003
6115310115253
714604161226
oct3443125221
91211252056
10478980753
11226410369
121144abb29
1378305a84
144788394d
152c0b5353
hex1c8caa91

478980753 has 4 divisors (see below), whose sum is σ = 638641008. Its totient is φ = 319320500.

The previous prime is 478980731. The next prime is 478980793. The reversal of 478980753 is 357089874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 478980753 - 221 = 476883601 is a prime.

It is a super-3 number, since 3×4789807533 (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478980696 and 478980705.

It is not an unprimeable number, because it can be changed into a prime (478980793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79830123 + ... + 79830128.

It is an arithmetic number, because the mean of its divisors is an integer number (159660252).

Almost surely, 2478980753 is an apocalyptic number.

It is an amenable number.

478980753 is a deficient number, since it is larger than the sum of its proper divisors (159660255).

478980753 is a wasteful number, since it uses less digits than its factorization.

478980753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159660254.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 478980753 is about 21885.6289148838. The cubic root of 478980753 is about 782.4189386848.

The spelling of 478980753 in words is "four hundred seventy-eight million, nine hundred eighty thousand, seven hundred fifty-three".

Divisors: 1 3 159660251 478980753