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23301031212 = 22341032293049
BaseRepresentation
bin10101101100110110…
…011000010100101100
32020010220000000210000
4111230312120110230
5340210030444322
614412045544300
71453264332414
oct255466302454
966126000700
1023301031212
119977908698
124623575090
13227455b444
1411b088d644
159159743ac
hex56cd9852c

23301031212 has 120 divisors (see below), whose sum is σ = 61793732000. Its totient is φ = 7655503104.

The previous prime is 23301031189. The next prime is 23301031241. The reversal of 23301031212 is 21213010332.

23301031212 is a `hidden beast` number, since 2 + 330 + 10 + 312 + 12 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7640664 + ... + 7643712.

Almost surely, 223301031212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23301031212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30896866000).

23301031212 is an abundant number, since it is smaller than the sum of its proper divisors (38492700788).

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

23301031212 is a wasteful number, since it uses less digits than its factorization.

23301031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397 (or 3386 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23301031212 its reverse (21213010332), we get a palindrome (44514041544).

The spelling of 23301031212 in words is "twenty-three billion, three hundred one million, thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 103 108 162 206 229 309 324 412 458 618 687 916 927 1236 1374 1854 2061 2748 2781 3049 3708 4122 5562 6098 6183 8244 8343 9147 11124 12196 12366 16686 18294 18549 23587 24732 27441 33372 36588 37098 47174 54882 70761 74196 82323 94348 109764 141522 164646 212283 246969 283044 314047 329292 424566 493938 628094 636849 698221 849132 942141 987876 1256188 1273698 1396442 1884282 1910547 2094663 2547396 2792884 2826423 3768564 3821094 4189326 5652846 6283989 7642188 8378652 8479269 11305692 12567978 16958538 18851967 25135956 25437807 33917076 37703934 50875614 56555901 71916763 75407868 101751228 113111802 143833526 215750289 226223604 287667052 431500578 647250867 863001156 1294501734 1941752601 2589003468 3883505202 5825257803 7767010404 11650515606 23301031212