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212013204 = 223132104543
BaseRepresentation
bin11001010001100…
…01000010010100
3112202221101102220
430220301002110
5413233410304
633012102340
75153040204
oct1450610224
9482841386
10212013204
11a9748727
125b0049b0
1334c02300
142022c404
151392dad9
hexca31094

212013204 has 36 divisors (see below), whose sum is σ = 535683456. Its totient is φ = 65234208.

The previous prime is 212013203. The next prime is 212013209. The reversal of 212013204 is 402310212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50244 + ... + 54299.

It is an arithmetic number, because the mean of its divisors is an integer number (14880096).

Almost surely, 2212013204 is an apocalyptic number.

It is an amenable number.

212013204 is an abundant number, since it is smaller than the sum of its proper divisors (323670252).

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

212013204 is a wasteful number, since it uses less digits than its factorization.

212013204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104576 (or 104561 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212013204 is about 14560.6731987226. The cubic root of 212013204 is about 596.2855747489.

Adding to 212013204 its reverse (402310212), we get a palindrome (614323416).

The spelling of 212013204 in words is "two hundred twelve million, thirteen thousand, two hundred four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 104543 209086 313629 418172 627258 1254516 1359059 2718118 4077177 5436236 8154354 16308708 17667767 35335534 53003301 70671068 106006602 212013204