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216230463 = 32171413271
BaseRepresentation
bin11001110001101…
…10101000111111
3120001212122102200
430320312220333
5420323333323
633242322543
75233633341
oct1470665077
9501778380
10216230463
11101069169
12604b9453
1335a4aa27
1420a09291
1513eb3443
hexce36a3f

216230463 has 12 divisors (see below), whose sum is σ = 330705648. Its totient is φ = 135673920.

The previous prime is 216230461. The next prime is 216230473. The reversal of 216230463 is 364032612.

It is not a de Polignac number, because 216230463 - 21 = 216230461 is a prime.

It is a super-2 number, since 2×2162304632 = 93511226258388738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216230461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 706483 + ... + 706788.

It is an arithmetic number, because the mean of its divisors is an integer number (27558804).

Almost surely, 2216230463 is an apocalyptic number.

216230463 is a deficient number, since it is larger than the sum of its proper divisors (114475185).

216230463 is a wasteful number, since it uses less digits than its factorization.

216230463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413294 (or 1413291 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 216230463 is about 14704.7768769200. The cubic root of 216230463 is about 600.2133158183.

The spelling of 216230463 in words is "two hundred sixteen million, two hundred thirty thousand, four hundred sixty-three".

Divisors: 1 3 9 17 51 153 1413271 4239813 12719439 24025607 72076821 216230463