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30115023160 = 23531411673547
BaseRepresentation
bin11100000010111111…
…101100100100111000
32212201202201200111011
4130002333230210320
5443133421220120
621500141243304
72114164321225
oct340277544470
985652650434
1030115023160
11118541666a2
125a05563534
132abc168941
14165982a94c
15bb3c99c5a
hex702fec938

30115023160 has 128 divisors (see below), whose sum is σ = 72099901440. Its totient is φ = 11301811200.

The previous prime is 30115023151. The next prime is 30115023221. The reversal of 30115023160 is 6132051103.

It is a happy number.

It is a congruent number.

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, 8488507 + ... + 8492053.

It is an arithmetic number, because the mean of its divisors is an integer number (563280480).

Almost surely, 230115023160 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 30115023160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36049950720).

30115023160 is an abundant number, since it is smaller than the sum of its proper divisors (41984878280).

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

30115023160 is a wasteful number, since it uses less digits than its factorization.

30115023160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 30115023160 its reverse (6132051103), we get a palindrome (36247074263).

The spelling of 30115023160 in words is "thirty billion, one hundred fifteen million, twenty-three thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 31 40 41 62 82 124 155 164 167 205 248 310 328 334 410 620 668 820 835 1240 1271 1336 1640 1670 2542 3340 3547 5084 5177 6355 6680 6847 7094 10168 10354 12710 13694 14188 17735 20708 25420 25885 27388 28376 34235 35470 41416 50840 51770 54776 68470 70940 103540 109957 136940 141880 145427 207080 212257 219914 273880 290854 424514 439828 549785 581708 592349 727135 849028 879656 1061285 1099570 1163416 1184698 1454270 1698056 2122570 2199140 2369396 2908540 2961745 4245140 4398280 4508237 4738792 5817080 5923490 8490280 9016474 11846980 18032948 18362819 22541185 23693960 24286309 36065896 36725638 45082370 48572618 73451276 90164740 91814095 97145236 121431545 146902552 180329480 183628190 194290472 242863090 367256380 485726180 734512760 752875579 971452360 1505751158 3011502316 3764377895 6023004632 7528755790 15057511580 30115023160