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212341302 = 232191933217
BaseRepresentation
bin11001010100000…
…01001000110110
3112210120001111200
430222001020312
5413324410202
633023113330
75155604565
oct1452011066
9483501450
10212341302
11a9952188
125b142846
1334cb8754
14202b5bdc
1513995e1c
hexca81236

212341302 has 48 divisors (see below), whose sum is σ = 486947760. Its totient is φ = 66686976.

The previous prime is 212341301. The next prime is 212341319. The reversal of 212341302 is 203143212.

212341302 is a `hidden beast` number, since 21 + 2 + 341 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212341301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64398 + ... + 67614.

It is an arithmetic number, because the mean of its divisors is an integer number (10144745).

Almost surely, 2212341302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212341302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243473880).

212341302 is an abundant number, since it is smaller than the sum of its proper divisors (274606458).

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

212341302 is a wasteful number, since it uses less digits than its factorization.

212341302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437 (or 3434 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212341302 is about 14571.9354239579. The cubic root of 212341302 is about 596.5930072853.

Adding to 212341302 its reverse (203143212), we get a palindrome (415484514).

The spelling of 212341302 in words is "two hundred twelve million, three hundred forty-one thousand, three hundred two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 193 342 386 579 1158 1737 3217 3474 3667 6434 7334 9651 11001 19302 22002 28953 33003 57906 61123 66006 122246 183369 366738 550107 620881 1100214 1241762 1862643 3725286 5587929 11175858 11796739 23593478 35390217 70780434 106170651 212341302