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212023032220 = 22510601151611
BaseRepresentation
bin1100010101110110001…
…1101011100110011100
3202021021020202000010001
43011131203223212130
511433210344012340
6241222501224044
721214062016036
oct3053543534634
9667236660101
10212023032220
1181a1152426a
1235112102024
1316cbc18931c
14a394bb6c56
1557adc4429a
hex315d8eb99c

212023032220 has 12 divisors (see below), whose sum is σ = 445248367704. Its totient is φ = 84809212880.

The previous prime is 212023032203. The next prime is 212023032233. The reversal of 212023032220 is 22230320212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5300575786 + ... + 5300575825.

It is an arithmetic number, because the mean of its divisors is an integer number (37104030642).

Almost surely, 2212023032220 is an apocalyptic number.

212023032220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212023032220 is an abundant number, since it is smaller than the sum of its proper divisors (233225335484).

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

212023032220 is a wasteful number, since it uses less digits than its factorization.

212023032220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10601151620 (or 10601151618 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 212023032220 its reverse (22230320212), we get a palindrome (234253352432).

The spelling of 212023032220 in words is "two hundred twelve billion, twenty-three million, thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10601151611 21202303222 42404606444 53005758055 106011516110 212023032220