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490476868 = 227219131707
BaseRepresentation
bin11101001111000…
…001010101000100
31021011220210202221
4131033001111010
52001030224433
6120400342124
715103661500
oct3517012504
91234823687
10490476868
11231952592
12118314944
137a7cc5cb
14491d7300
152d0d672d
hex1d3c1544

490476868 has 36 divisors (see below), whose sum is σ = 1051029840. Its totient is φ = 199139472.

The previous prime is 490476821. The next prime is 490476871. The reversal of 490476868 is 868674094.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 62130 + ... + 69577.

Almost surely, 2490476868 is an apocalyptic number.

It is an amenable number.

490476868 is an abundant number, since it is smaller than the sum of its proper divisors (560552972).

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

490476868 is a wasteful number, since it uses less digits than its factorization.

490476868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131744 (or 131735 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 490476868 is about 22146.7123519497. The cubic root of 490476868 is about 788.6291817593.

The spelling of 490476868 in words is "four hundred ninety million, four hundred seventy-six thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 131707 263414 526828 921949 1843898 2502433 3687796 5004866 6453643 10009732 12907286 17517031 25814572 35034062 70068124 122619217 245238434 490476868