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212122014 = 23137138303
BaseRepresentation
bin11001010010010…
…11100110011110
3112210010220200220
430221023212132
5413300401024
633014302210
75154002346
oct1451134636
9483126626
10212122014
11a9812455
125b057966
1334c3c9b0
1420259d26
1513950e79
hexca4b99e

212122014 has 32 divisors (see below), whose sum is σ = 463325184. Its totient is φ = 64347360.

The previous prime is 212122007. The next prime is 212122019. The reversal of 212122014 is 410221212.

It is a junction number, because it is equal to n+sod(n) for n = 212121984 and 212122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122019) 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, 13614 + ... + 24689.

It is an arithmetic number, because the mean of its divisors is an integer number (14478912).

Almost surely, 2212122014 is an apocalyptic number.

212122014 is an abundant number, since it is smaller than the sum of its proper divisors (251203170).

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

212122014 is a wasteful number, since it uses less digits than its factorization.

212122014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38392.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 212122014 is about 14564.4091538243. The cubic root of 212122014 is about 596.3875664107.

Adding to 212122014 its reverse (410221212), we get a palindrome (622343226).

The spelling of 212122014 in words is "two hundred twelve million, one hundred twenty-two thousand, fourteen".

Divisors: 1 2 3 6 13 26 39 71 78 142 213 426 923 1846 2769 5538 38303 76606 114909 229818 497939 995878 1493817 2719513 2987634 5439026 8158539 16317078 35353669 70707338 106061007 212122014