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478870052 = 22532258821
BaseRepresentation
bin11100100010101…
…111101000100100
31020101002010012212
4130202233220210
51440042320202
6115303502552
714603220413
oct3442575044
91211063185
10478870052
11226345181
12114457a58
137829757b
144785547a
152c092652
hex1c8afa24

478870052 has 12 divisors (see below), whose sum is σ = 853834716. Its totient is φ = 234917280.

The previous prime is 478870033. The next prime is 478870061. The reversal of 478870052 is 250078874.

It can be written as a sum of positive squares in 2 ways, for example, as 396169216 + 82700836 = 19904^2 + 9094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 478869991 and 478870009.

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, 1129199 + ... + 1129622.

It is an arithmetic number, because the mean of its divisors is an integer number (71152893).

Almost surely, 2478870052 is an apocalyptic number.

It is an amenable number.

478870052 is a deficient number, since it is larger than the sum of its proper divisors (374964664).

478870052 is a wasteful number, since it uses less digits than its factorization.

478870052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258878 (or 2258876 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 478870052 is about 21883.0996890294. The cubic root of 478870052 is about 782.3586570472.

The spelling of 478870052 in words is "four hundred seventy-eight million, eight hundred seventy thousand, fifty-two".

Divisors: 1 2 4 53 106 212 2258821 4517642 9035284 119717513 239435026 478870052