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30288728600 = 23521311649511
BaseRepresentation
bin11100001101010110…
…010101001000011000
32220011212120211112222
4130031112111020120
5444012403303400
621525304323212
72121403642124
oct341526251030
986155524488
1030288728600
111193321a109
125a53773508
132b19147720
141674926584
15bc415d185
hex70d595218

30288728600 has 48 divisors (see below), whose sum is σ = 75838323120. Its totient is φ = 11183529600.

The previous prime is 30288728599. The next prime is 30288728611. The reversal of 30288728600 is 682788203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5822156 + ... + 5827355.

It is an arithmetic number, because the mean of its divisors is an integer number (1579965065).

Almost surely, 230288728600 is an apocalyptic number.

It is an amenable number.

30288728600 is an abundant number, since it is smaller than the sum of its proper divisors (45549594520).

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

30288728600 is a wasteful number, since it uses less digits than its factorization.

30288728600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11649540 (or 11649531 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 30288728600 in words is "thirty billion, two hundred eighty-eight million, seven hundred twenty-eight thousand, six hundred".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 130 200 260 325 520 650 1300 2600 11649511 23299022 46598044 58247555 93196088 116495110 151443643 232990220 291237775 302887286 465980440 582475550 605774572 757218215 1164951100 1211549144 1514436430 2329902200 3028872860 3786091075 6057745720 7572182150 15144364300 30288728600