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212330131100 = 225213915275549
BaseRepresentation
bin1100010110111111011…
…1001010111010011100
3202022001122121020120122
43011233313022322130
511434323003143400
6241313151334112
721224511223043
oct3055767127234
9668048536518
10212330131100
118205990719a
1235198b21338
131703a9a1339
14a3c38b755a
1557caba6685
hex316fdcae9c

212330131100 has 36 divisors (see below), whose sum is σ = 464071209000. Its totient is φ = 84321024960.

The previous prime is 212330131099. The next prime is 212330131103. The reversal of 212330131100 is 1131033212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212330131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7623875 + ... + 7651674.

Almost surely, 2212330131100 is an apocalyptic number.

212330131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212330131100 is an abundant number, since it is smaller than the sum of its proper divisors (251741077900).

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

212330131100 is a wasteful number, since it uses less digits than its factorization.

212330131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275702 (or 15275695 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 212330131100 its reverse (1131033212), we get a palindrome (213461164312).

The spelling of 212330131100 in words is "two hundred twelve billion, three hundred thirty million, one hundred thirty-one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 139 278 556 695 1390 2780 3475 6950 13900 15275549 30551098 61102196 76377745 152755490 305510980 381888725 763777450 1527554900 2123301311 4246602622 8493205244 10616506555 21233013110 42466026220 53082532775 106165065550 212330131100