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490865216 = 2643917471
BaseRepresentation
bin11101010000100…
…000001001000000
31021012122112111012
4131100200021000
52001130141331
6120412540052
715110166632
oct3520401100
91235575435
10490865216
11232098336
12118481628
137a9072ba
1449298a52
152d16182b
hex1d420240

490865216 has 28 divisors (see below), whose sum is σ = 976335360. Its totient is φ = 244859520.

The previous prime is 490865203. The next prime is 490865233. The reversal of 490865216 is 612568094.

It is a happy number.

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, 19361 + ... + 36831.

It is an arithmetic number, because the mean of its divisors is an integer number (34869120).

Almost surely, 2490865216 is an apocalyptic number.

It is an amenable number.

490865216 is a deficient number, since it is larger than the sum of its proper divisors (485470144).

490865216 is a wasteful number, since it uses less digits than its factorization.

490865216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17922 (or 17912 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 490865216 is about 22155.4782390270. The cubic root of 490865216 is about 788.8372661702.

The spelling of 490865216 in words is "four hundred ninety million, eight hundred sixty-five thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 64 439 878 1756 3512 7024 14048 17471 28096 34942 69884 139768 279536 559072 1118144 7669769 15339538 30679076 61358152 122716304 245432608 490865216