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478873868 = 221129537397
BaseRepresentation
bin11100100010110…
…000100100001100
31020101002022110012
4130202300210030
51440042430433
6115303532352
714603234504
oct3442604414
91211068405
10478873868
11226348030
1211445a0b8
1378299225
1447856a04
152c093848
hex1c8b090c

478873868 has 96 divisors (see below), whose sum is σ = 986852160. Its totient is φ = 201277440.

The previous prime is 478873859. The next prime is 478873903. The reversal of 478873868 is 868378874.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4936796 + ... + 4936892.

It is an arithmetic number, because the mean of its divisors is an integer number (10279710).

Almost surely, 2478873868 is an apocalyptic number.

It is an amenable number.

478873868 is an abundant number, since it is smaller than the sum of its proper divisors (507978292).

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

478873868 is a wasteful number, since it uses less digits than its factorization.

478873868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 59.

The square root of 478873868 is about 21883.1868794287. The cubic root of 478873868 is about 782.3607351842.

The spelling of 478873868 in words is "four hundred seventy-eight million, eight hundred seventy-three thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 29 44 53 58 73 97 106 116 146 194 212 292 319 388 583 638 803 1067 1166 1276 1537 1606 2117 2134 2332 2813 3074 3212 3869 4234 4268 5141 5626 6148 7081 7738 8468 10282 11252 14162 15476 16907 20564 23287 28324 30943 33814 42559 46574 56551 61886 67628 77891 85118 93148 112201 113102 123772 149089 155782 170236 205349 224402 226204 298178 311564 375293 410698 448804 596356 750586 821396 1234211 1501172 1639979 2258839 2468422 3279958 4128223 4517678 4936844 6559916 8256446 9035356 10883497 16512892 21766994 43533988 119718467 239436934 478873868