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233130312212 = 227312221120929
BaseRepresentation
bin1101100100011110100…
…1100100001000010100
3211021202020210220221212
43121013221210020110
512304422324442322
6255033143400552
722562120646350
oct3310751441024
9737666726855
10233130312212
118a962a90116
1239222a53158
1318ca4093405
14b3d8174460
1560e6cd30e2
hex3647a64214

233130312212 has 48 divisors (see below), whose sum is σ = 481521976320. Its totient is φ = 96645657600.

The previous prime is 233130312199. The next prime is 233130312229. The reversal of 233130312212 is 212213031332.

It is a super-3 number, since 3×2331303122123 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

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, 1867364 + ... + 1988292.

It is an arithmetic number, because the mean of its divisors is an integer number (10031707840).

Almost surely, 2233130312212 is an apocalyptic number.

It is an amenable number.

233130312212 is an abundant number, since it is smaller than the sum of its proper divisors (248391664108).

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

233130312212 is a wasteful number, since it uses less digits than its factorization.

233130312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123192 (or 123190 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 233130312212 its reverse (212213031332), we get a palindrome (445343343544).

The spelling of 233130312212 in words is "two hundred thirty-three billion, one hundred thirty million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 2221 4442 8884 15547 31094 62188 68851 120929 137702 241858 275404 481957 483716 846503 963914 1693006 1927828 3386012 3748799 7497598 14995196 26241593 52483186 104966372 268583309 537166618 1074333236 1880083163 3760166326 7520332652 8326082579 16652165158 33304330316 58282578053 116565156106 233130312212