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1230322212 = 2232714333407
BaseRepresentation
bin100100101010101…
…0011101000100100
310011202001211210100
41021111103220210
510004430302322
6322030024100
742326365140
oct11125235044
93152054710
101230322212
11581537319
122a4048030
13167b80012
14b9584220
1573029dac
hex49553a24

1230322212 has 72 divisors (see below), whose sum is σ = 3557788416. Its totient is φ = 351172224.

The previous prime is 1230322201. The next prime is 1230322229. The reversal of 1230322212 is 2122230321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 359413 + ... + 362819.

It is an arithmetic number, because the mean of its divisors is an integer number (49413728).

Almost surely, 21230322212 is an apocalyptic number.

1230322212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230322212 is an abundant number, since it is smaller than the sum of its proper divisors (2327466204).

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

1230322212 is a wasteful number, since it uses less digits than its factorization.

1230322212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4857 (or 4852 counting only the distinct ones).

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

The square root of 1230322212 is about 35075.9491959947. The cubic root of 1230322212 is about 1071.5348201225.

Adding to 1230322212 its reverse (2122230321), we get a palindrome (3352552533).

The spelling of 1230322212 in words is "one billion, two hundred thirty million, three hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 1433 2866 3407 4299 5732 6814 8598 10031 10221 12897 13628 17196 20062 20442 23849 25794 30093 30663 40124 40884 47698 51588 60186 61326 71547 90279 95396 120372 122652 143094 180558 214641 286188 361116 429282 858564 4882231 9764462 14646693 19528924 29293386 34175617 43940079 58586772 68351234 87880158 102526851 136702468 175760316 205053702 307580553 410107404 615161106 1230322212