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212132230 = 25831311951
BaseRepresentation
bin11001010010011…
…10000110000110
3112210011102201021
430221032012012
5413301212410
633014421354
75154044212
oct1451160606
9483142637
10212132230
11a981a0a2
125b06185a
1334c4453b
142025d942
1513953eda
hexca4e186

212132230 has 32 divisors (see below), whose sum is σ = 389587968. Its totient is φ = 83148000.

The previous prime is 212132227. The next prime is 212132231. The reversal of 212132230 is 32231212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107755 + ... + 109705.

It is an arithmetic number, because the mean of its divisors is an integer number (12174624).

Almost surely, 2212132230 is an apocalyptic number.

212132230 is a deficient number, since it is larger than the sum of its proper divisors (177455738).

212132230 is a wasteful number, since it uses less digits than its factorization.

212132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212132230 is about 14564.7598675708. The cubic root of 212132230 is about 596.3971404564.

Adding to 212132230 its reverse (32231212), we get a palindrome (244363442).

The spelling of 212132230 in words is "two hundred twelve million, one hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 83 131 166 262 415 655 830 1310 1951 3902 9755 10873 19510 21746 54365 108730 161933 255581 323866 511162 809665 1277905 1619330 2555810 21213223 42426446 106066115 212132230