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30211311200 = 255275394877
BaseRepresentation
bin11100001000101111…
…000000011001100000
32212222110220121211212
4130020233000121200
5443333043424300
621513501125252
72116443623330
oct341057003140
985873817755
1030211311200
11118a3552294
125a31859828
132b060aca05
1416685330c0
15bbc469935
hex708bc0660

30211311200 has 72 divisors (see below), whose sum is σ = 84289573872. Its totient is φ = 10358161920.

The previous prime is 30211311199. The next prime is 30211311223. The reversal of 30211311200 is 211311203.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2691839 + ... + 2703038.

It is an arithmetic number, because the mean of its divisors is an integer number (1170688526).

Almost surely, 230211311200 is an apocalyptic number.

It is an amenable number.

30211311200 is an abundant number, since it is smaller than the sum of its proper divisors (54078262672).

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

30211311200 is a wasteful number, since it uses less digits than its factorization.

30211311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394904 (or 5394891 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30211311200 its reverse (211311203), we get a palindrome (30422622403).

It can be divided in two parts, 302113 and 11200, that added together give a palindrome (313313).

The spelling of 30211311200 in words is "thirty billion, two hundred eleven million, three hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 70 80 100 112 140 160 175 200 224 280 350 400 560 700 800 1120 1400 2800 5600 5394877 10789754 21579508 26974385 37764139 43159016 53948770 75528278 86318032 107897540 134871925 151056556 172636064 188820695 215795080 269743850 302113112 377641390 431590160 539487700 604226224 755282780 863180320 944103475 1078975400 1208452448 1510565560 1888206950 2157950800 3021131120 3776413900 4315901600 6042262240 7552827800 15105655600 30211311200