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212020332 = 223105116811
BaseRepresentation
bin11001010001100…
…10110001101100
3112202221202012220
430220302301230
5413234122312
633012155340
75153100036
oct1450626154
9482852186
10212020332
11a9753017
125b008b50
1334c05624
1420230c56
1513930c8c
hexca32c6c

212020332 has 24 divisors (see below), whose sum is σ = 495214272. Its totient is φ = 70602000.

The previous prime is 212020301. The next prime is 212020349. The reversal of 212020332 is 233020212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4207 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (20633928).

Almost surely, 2212020332 is an apocalyptic number.

It is an amenable number.

212020332 is an abundant number, since it is smaller than the sum of its proper divisors (283193940).

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

212020332 is a wasteful number, since it uses less digits than its factorization.

212020332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17869 (or 17867 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 212020332 is about 14560.9179655680. The cubic root of 212020332 is about 596.2922571566.

Adding to 212020332 its reverse (233020212), we get a palindrome (445040544).

The spelling of 212020332 in words is "two hundred twelve million, twenty thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 1051 2102 3153 4204 6306 12612 16811 33622 50433 67244 100866 201732 17668361 35336722 53005083 70673444 106010166 212020332