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212276212 = 221715312039
BaseRepresentation
bin11001010011100…
…01001111110100
3112210102202012221
430221301033310
5413320314322
633021452124
75155214041
oct1451611764
9483382187
10212276212
11a9908295
125b111044
1334c94c35
142029a1c8
15139819c7
hexca713f4

212276212 has 24 divisors (see below), whose sum is σ = 393785280. Its totient is φ = 99780480.

The previous prime is 212276191. The next prime is 212276219. The reversal of 212276212 is 212672212.

It is a super-2 number, since 2×2122762122 = 90122380362137888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212276219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103089 + ... + 105127.

It is an arithmetic number, because the mean of its divisors is an integer number (16407720).

Almost surely, 2212276212 is an apocalyptic number.

It is an amenable number.

212276212 is a deficient number, since it is larger than the sum of its proper divisors (181509068).

212276212 is a wasteful number, since it uses less digits than its factorization.

212276212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591 (or 3589 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 212276212 is about 14569.7018500723. The cubic root of 212276212 is about 596.5320422148.

The spelling of 212276212 in words is "two hundred twelve million, two hundred seventy-six thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 1531 2039 3062 4078 6124 8156 26027 34663 52054 69326 104108 138652 3121709 6243418 12486836 53069053 106138106 212276212