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212312132210 = 25236591400753
BaseRepresentation
bin1100010110111011001…
…0100000101001110010
3202022000101201210202002
43011232302200221302
511434303401212320
6241311305454002
721224202230123
oct3055662405162
9668011653662
10212312132210
118204a733382
1235192aa1302
131703703b9c9
14a3c135004a
1557c92ed675
hex316eca0a72

212312132210 has 32 divisors (see below), whose sum is σ = 399382980480. Its totient is φ = 81109143808.

The previous prime is 212312132189. The next prime is 212312132213. The reversal of 212312132210 is 12231213212.

It is not an unprimeable number, because it can be changed into a prime (212312132213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548807 + ... + 851946.

It is an arithmetic number, because the mean of its divisors is an integer number (12480718140).

Almost surely, 2212312132210 is an apocalyptic number.

212312132210 is a deficient number, since it is larger than the sum of its proper divisors (187070848270).

212312132210 is a wasteful number, since it uses less digits than its factorization.

212312132210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401442.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212312132210 its reverse (12231213212), we get a palindrome (224543345422).

The spelling of 212312132210 in words is "two hundred twelve billion, three hundred twelve million, one hundred thirty-two thousand, two hundred ten".

Divisors: 1 2 5 10 23 46 115 230 659 1318 3295 6590 15157 30314 75785 151570 1400753 2801506 7003765 14007530 32217319 64434638 161086595 322173190 923096227 1846192454 4615481135 9230962270 21231213221 42462426442 106156066105 212312132210