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211112132 = 22711685429
BaseRepresentation
bin11001001010101…
…01000011000100
3112201020121101212
430211111003010
5413021042012
632540510552
75142265160
oct1445250304
9481217355
10211112132
11a9192740
125a84b458
133497812a
1420075ca0
1513801b22
hexc9550c4

211112132 has 24 divisors (see below), whose sum is σ = 460608960. Its totient is φ = 82251360.

The previous prime is 211112129. The next prime is 211112189. The reversal of 211112132 is 231211112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342407 + ... + 343022.

It is an arithmetic number, because the mean of its divisors is an integer number (19192040).

Almost surely, 2211112132 is an apocalyptic number.

211112132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211112132 is an abundant number, since it is smaller than the sum of its proper divisors (249496828).

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

211112132 is a wasteful number, since it uses less digits than its factorization.

211112132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685451 (or 685449 counting only the distinct ones).

The product of its digits is 24, while the sum is 14.

The square root of 211112132 is about 14529.6982762892. The cubic root of 211112132 is about 595.4396223731.

Adding to 211112132 its reverse (231211112), we get a palindrome (442323244).

The spelling of 211112132 in words is "two hundred eleven million, one hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 685429 1370858 2741716 4798003 7539719 9596006 15079438 19192012 30158876 52778033 105556066 211112132