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212331031332 = 223716315507671
BaseRepresentation
bin1100010110111111101…
…0100110101100100100
3202022001201021222110120
43011233322212230210
511434323221000312
6241313222521540
721224521662450
oct3055772465444
9668051258416
10212331031332
118205a371592
12351992962b0
131703ac28014
14a3c3a6d660
1557cacd328c
hex316fea6b24

212331031332 has 48 divisors (see below), whose sum is σ = 569689838592. Its totient is φ = 60293820960.

The previous prime is 212331031313. The next prime is 212331031349. The reversal of 212331031332 is 233130133212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7740144 + ... + 7767527.

It is an arithmetic number, because the mean of its divisors is an integer number (11868538304).

Almost surely, 2212331031332 is an apocalyptic number.

It is an amenable number.

212331031332 is an abundant number, since it is smaller than the sum of its proper divisors (357358807260).

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

212331031332 is a wasteful number, since it uses less digits than its factorization.

212331031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15507848 (or 15507846 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 212331031332 its reverse (233130133212), we get a palindrome (445461164544).

The spelling of 212331031332 in words is "two hundred twelve billion, three hundred thirty-one million, thirty-one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 163 326 489 652 978 1141 1956 2282 3423 4564 6846 13692 15507671 31015342 46523013 62030684 93046026 108553697 186092052 217107394 325661091 434214788 651322182 1302644364 2527750373 5055500746 7583251119 10111001492 15166502238 17694252611 30333004476 35388505222 53082757833 70777010444 106165515666 212331031332