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212463275 = 5264313217
BaseRepresentation
bin11001010100111…
…10111010101011
3112210210020211012
430222132322223
5413342311100
633025454135
75156623313
oct1452367253
9483706735
10212463275
11a9a25892
125b1a134b
133502c11b
1420308443
15139bc135
hexca9eeab

212463275 has 12 divisors (see below), whose sum is σ = 263884152. Its totient is φ = 169693440.

The previous prime is 212463197. The next prime is 212463289. The reversal of 212463275 is 572364212.

It is a de Polignac number, because none of the positive numbers 2k-212463275 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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, 9467 + ... + 22683.

It is an arithmetic number, because the mean of its divisors is an integer number (21990346).

Almost surely, 2212463275 is an apocalyptic number.

212463275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212463275 is a deficient number, since it is larger than the sum of its proper divisors (51420877).

212463275 is a wasteful number, since it uses less digits than its factorization.

212463275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870 (or 13865 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 212463275 is about 14576.1200255761. The cubic root of 212463275 is about 596.7072169868.

The spelling of 212463275 in words is "two hundred twelve million, four hundred sixty-three thousand, two hundred seventy-five".

Divisors: 1 5 25 643 3215 13217 16075 66085 330425 8498531 42492655 212463275