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205514412 = 22319247441
BaseRepresentation
bin11000011111111…
…10011010101100
3112022201012202220
430033332122230
5410102430122
632220515340
75043562245
oct1417763254
9468635686
10205514412
11a600a024
12589abb50
133376827c
141d419ccc
151309825c
hexc3fe6ac

205514412 has 36 divisors (see below), whose sum is σ = 506111256. Its totient is φ = 64897920.

The previous prime is 205514389. The next prime is 205514417. The reversal of 205514412 is 214415502.

It is not an unprimeable number, because it can be changed into a prime (205514417) 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, 19389 + ... + 28052.

It is an arithmetic number, because the mean of its divisors is an integer number (14058646).

Almost surely, 2205514412 is an apocalyptic number.

It is an amenable number.

205514412 is an abundant number, since it is smaller than the sum of its proper divisors (300596844).

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

205514412 is a wasteful number, since it uses less digits than its factorization.

205514412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47486 (or 47465 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 205514412 is about 14335.7738542431. The cubic root of 205514412 is about 590.1296392326.

Adding to 205514412 its reverse (214415502), we get a palindrome (419929914).

The spelling of 205514412 in words is "two hundred five million, five hundred fourteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 361 722 1083 1444 2166 4332 47441 94882 142323 189764 284646 569292 901379 1802758 2704137 3605516 5408274 10816548 17126201 34252402 51378603 68504804 102757206 205514412