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212018152 = 23175926423
BaseRepresentation
bin11001010001100…
…10001111101000
3112202221122020011
430220302033220
5413234040102
633012141304
75153060503
oct1450621750
9482848204
10212018152
11a9751415
125b007834
1334c04638
142023013a
15139302d7
hexca323e8

212018152 has 32 divisors (see below), whose sum is σ = 428068800. Its totient is φ = 98078464.

The previous prime is 212018113. The next prime is 212018167. The reversal of 212018152 is 251810212.

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, 5188 + ... + 21235.

It is an arithmetic number, because the mean of its divisors is an integer number (13377150).

Almost surely, 2212018152 is an apocalyptic number.

It is an amenable number.

212018152 is an abundant number, since it is smaller than the sum of its proper divisors (216050648).

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

212018152 is a wasteful number, since it uses less digits than its factorization.

212018152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26505 (or 26501 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 212018152 is about 14560.8431074578. The cubic root of 212018152 is about 596.2902134507.

Adding to 212018152 its reverse (251810212), we get a palindrome (463828364).

The spelling of 212018152 in words is "two hundred twelve million, eighteen thousand, one hundred fifty-two".

Divisors: 1 2 4 8 17 34 59 68 118 136 236 472 1003 2006 4012 8024 26423 52846 105692 211384 449191 898382 1558957 1796764 3117914 3593528 6235828 12471656 26502269 53004538 106009076 212018152