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212013052 = 22174766337
BaseRepresentation
bin11001010001100…
…00111111111100
3112202221101020021
430220300333330
5413233404202
633012101524
75153036566
oct1450607774
9482841207
10212013052
11a97485a9
125b0048a4
1334c02214
142022c336
151392da37
hexca30ffc

212013052 has 24 divisors (see below), whose sum is σ = 401212224. Its totient is φ = 97646592.

The previous prime is 212013017. The next prime is 212013059. The reversal of 212013052 is 250310212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29973 + ... + 36364.

It is an arithmetic number, because the mean of its divisors is an integer number (16717176).

Almost surely, 2212013052 is an apocalyptic number.

It is an amenable number.

212013052 is a deficient number, since it is larger than the sum of its proper divisors (189199172).

212013052 is a wasteful number, since it uses less digits than its factorization.

212013052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66405 (or 66403 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 212013052 is about 14560.6679791828. The cubic root of 212013052 is about 596.2854322493.

Adding to 212013052 its reverse (250310212), we get a palindrome (462323264).

The spelling of 212013052 in words is "two hundred twelve million, thirteen thousand, fifty-two".

Divisors: 1 2 4 17 34 47 68 94 188 799 1598 3196 66337 132674 265348 1127729 2255458 3117839 4510916 6235678 12471356 53003263 106006526 212013052