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30775011080 = 235112310130109
BaseRepresentation
bin11100101010010101…
…010110011100001000
32221102202121112201012
4130222111112130020
51001011400323310
622045435143052
72136430164242
oct345225263410
987382545635
1030775011080
1112062767360
125b6a5a4a88
132b95b08b38
1416bd34b092
15c01bb6c05
hex72a556708

30775011080 has 128 divisors (see below), whose sum is σ = 79606022400. Its totient is φ = 10598016000.

The previous prime is 30775011077. The next prime is 30775011097. The reversal of 30775011080 is 8011057703.

It is a super-3 number, since 3×307750110803 (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1007066 + ... + 1037174.

It is an arithmetic number, because the mean of its divisors is an integer number (621922050).

Almost surely, 230775011080 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 30775011080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39803011200).

30775011080 is an abundant number, since it is smaller than the sum of its proper divisors (48831011320).

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

30775011080 is a wasteful number, since it uses less digits than its factorization.

30775011080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30255 (or 30251 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 30775011080 its reverse (8011057703), we get a palindrome (38786068783).

The spelling of 30775011080 in words is "thirty billion, seven hundred seventy-five million, eleven thousand, eighty".

Divisors: 1 2 4 5 8 10 11 20 22 23 40 44 46 55 88 92 101 110 115 184 202 220 230 253 404 440 460 505 506 808 920 1010 1012 1111 1265 2020 2024 2222 2323 2530 4040 4444 4646 5060 5555 8888 9292 10120 11110 11615 18584 22220 23230 25553 30109 44440 46460 51106 60218 92920 102212 120436 127765 150545 204424 240872 255530 301090 331199 511060 602180 662398 692507 1022120 1204360 1324796 1385014 1655995 2649592 2770028 3041009 3311990 3462535 5540056 6082018 6623980 6925070 7617577 12164036 13247960 13850140 15205045 15235154 24328072 27700280 30410090 30470308 33451099 38087885 60820180 60940616 66902198 69943207 76175770 121640360 133804396 139886414 152351540 167255495 267608792 279772828 304703080 334510990 349716035 559545656 669021980 699432070 769375277 1338043960 1398864140 1538750554 2797728280 3077501108 3846876385 6155002216 7693752770 15387505540 30775011080