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30568212 = 2233349811
BaseRepresentation
bin111010010011…
…0111100010100
32010112000201000
41310212330110
530311140322
63011103300
7520553103
oct164467424
963460630
1030568212
1116289394
12a2a1b30
1364437cc
1440ba03a
152a3c3ac
hex1d26f14

30568212 has 48 divisors (see below), whose sum is σ = 79576000. Its totient is φ = 10147680.

The previous prime is 30568211. The next prime is 30568229. The reversal of 30568212 is 21286503.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30568211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37287 + ... + 38097.

Almost surely, 230568212 is an apocalyptic number.

It is an amenable number.

30568212 is an abundant number, since it is smaller than the sum of its proper divisors (49007788).

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

30568212 is a wasteful number, since it uses less digits than its factorization.

30568212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 30568212 is about 5528.8526838757. The cubic root of 30568212 is about 312.6727347963.

The spelling of 30568212 in words is "thirty million, five hundred sixty-eight thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 349 698 811 1047 1396 1622 2094 2433 3141 3244 4188 4866 6282 7299 9423 9732 12564 14598 18846 21897 29196 37692 43794 87588 283039 566078 849117 1132156 1698234 2547351 3396468 5094702 7642053 10189404 15284106 30568212