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478231072 = 25111358611
BaseRepresentation
bin11100100000010…
…011101000100000
31020022212122200221
4130200103220200
51434411343242
6115242052424
714564616454
oct3440235040
91208778627
10478231072
11225a490a0
121141aa114
1378102787
144772a664
152beb8167
hex1c813a20

478231072 has 24 divisors (see below), whose sum is σ = 1027110672. Its totient is φ = 217377600.

The previous prime is 478231067. The next prime is 478231081. The reversal of 478231072 is 270132874.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678954 + ... + 679657.

It is an arithmetic number, because the mean of its divisors is an integer number (42796278).

Almost surely, 2478231072 is an apocalyptic number.

It is an amenable number.

478231072 is an abundant number, since it is smaller than the sum of its proper divisors (548879600).

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

478231072 is a wasteful number, since it uses less digits than its factorization.

478231072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358632 (or 1358624 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 478231072 is about 21868.4949642174. The cubic root of 478231072 is about 782.0105222037.

The spelling of 478231072 in words is "four hundred seventy-eight million, two hundred thirty-one thousand, seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 1358611 2717222 5434444 10868888 14944721 21737776 29889442 43475552 59778884 119557768 239115536 478231072