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275512230 = 23257437321
BaseRepresentation
bin10000011010111…
…111101110100110
3201012102110201200
4100122333232212
51031012342410
643201103330
76553546440
oct2032775646
9635373650
10275512230
11131579464
1278327b46
1345105ab6
142883b490
15192c33c0
hex106bfba6

275512230 has 48 divisors (see below), whose sum is σ = 818666784. Its totient is φ = 62974080.

The previous prime is 275512229. The next prime is 275512247. The reversal of 275512230 is 32215572.

It is a junction number, because it is equal to n+sod(n) for n = 275512194 and 275512203.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 218031 + ... + 219290.

It is an arithmetic number, because the mean of its divisors is an integer number (17055558).

Almost surely, 2275512230 is an apocalyptic number.

275512230 is an abundant number, since it is smaller than the sum of its proper divisors (543154554).

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

275512230 is a wasteful number, since it uses less digits than its factorization.

275512230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437341 (or 437338 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 275512230 is about 16598.5610822143. The cubic root of 275512230 is about 650.6992317588.

The spelling of 275512230 in words is "two hundred seventy-five million, five hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 437321 874642 1311963 2186605 2623926 3061247 3935889 4373210 6122494 6559815 7871778 9183741 13119630 15306235 18367482 19679445 27551223 30612470 39358890 45918705 55102446 91837410 137756115 275512230