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478085680 = 2455976071
BaseRepresentation
bin11100011111110…
…000001000110000
31020022121021021001
4130133300020300
51434342220210
6115235011344
714563442542
oct3437601060
91208537231
10478085680
11225959936
12114139b54
1378081547
14476cd692
152be8a03a
hex1c7f0230

478085680 has 20 divisors (see below), whose sum is σ = 1111549392. Its totient is φ = 191234240.

The previous prime is 478085651. The next prime is 478085681. The reversal of 478085680 is 86580874.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 478085680.

It is not an unprimeable number, because it can be changed into a prime (478085681) 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, 2987956 + ... + 2988115.

Almost surely, 2478085680 is an apocalyptic number.

478085680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478085680 is an abundant number, since it is smaller than the sum of its proper divisors (633463712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478085680 is a wasteful number, since it uses less digits than its factorization.

478085680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976084 (or 5976078 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 478085680 is about 21865.1704772682. The cubic root of 478085680 is about 781.9312651216.

The spelling of 478085680 in words is "four hundred seventy-eight million, eighty-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 5976071 11952142 23904284 29880355 47808568 59760710 95617136 119521420 239042840 478085680