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212032143 = 32172775003
BaseRepresentation
bin11001010001101…
…01101010001111
3112202222100102100
430220311222033
5413240012033
633012330143
75153146341
oct1450655217
9482870370
10212032143
11a9760984
125b013953
1334c0ab0b
1420235291
1513934513
hexca35a8f

212032143 has 24 divisors (see below), whose sum is σ = 325520208. Its totient is φ = 132532992.

The previous prime is 212032133. The next prime is 212032151. The reversal of 212032143 is 341230212.

It is not a de Polignac number, because 212032143 - 24 = 212032127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212032133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39880 + ... + 44882.

It is an arithmetic number, because the mean of its divisors is an integer number (13563342).

Almost surely, 2212032143 is an apocalyptic number.

212032143 is a deficient number, since it is larger than the sum of its proper divisors (113488065).

212032143 is a wasteful number, since it uses less digits than its factorization.

212032143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303 (or 5300 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212032143 is about 14561.3235318772. The cubic root of 212032143 is about 596.3033294863.

Adding to 212032143 its reverse (341230212), we get a palindrome (553262355).

The spelling of 212032143 in words is "two hundred twelve million, thirty-two thousand, one hundred forty-three".

Divisors: 1 3 9 17 51 153 277 831 2493 4709 5003 14127 15009 42381 45027 85051 255153 765459 1385831 4157493 12472479 23559127 70677381 212032143