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30615500236344 = 233231992231249811
BaseRepresentation
bin1101111011000001110100…
…00001000010011000111000
311000101210221211222101220220
412331200322001002120320
513003101021030030334
6145040322221220040
76306616431153522
oct675407201023070
9130353854871826
1030615500236344
119833a62814631
1235255a5101620
13141104c45132a
1477bb2606ca12
153815a581e449
hex1bd83a042638

30615500236344 has 128 divisors (see below), whose sum is σ = 80627871744000. Its totient is φ = 9668850111360.

The previous prime is 30615500236339. The next prime is 30615500236393. The reversal of 30615500236344 is 44363200551603.

It is a junction number, because it is equal to n+sod(n) for n = 30615500236296 and 30615500236305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23871199 + ... + 25121009.

It is an arithmetic number, because the mean of its divisors is an integer number (629905248000).

Almost surely, 230615500236344 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 30615500236344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40313935872000).

30615500236344 is an abundant number, since it is smaller than the sum of its proper divisors (50012371507656).

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

30615500236344 is a wasteful number, since it uses less digits than its factorization.

30615500236344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250265 (or 1250261 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

Adding to 30615500236344 its reverse (44363200551603), we get a palindrome (74978700787947).

The spelling of 30615500236344 in words is "thirty trillion, six hundred fifteen billion, five hundred million, two hundred thirty-six thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 92 138 184 199 223 276 398 446 552 597 669 796 892 1194 1338 1592 1784 2388 2676 4577 4776 5129 5352 9154 10258 13731 15387 18308 20516 27462 30774 36616 41032 44377 54924 61548 88754 109848 123096 133131 177508 266262 355016 532524 1020671 1065048 1249811 2041342 2499622 3062013 3749433 4082684 4999244 6124026 7498866 8165368 9998488 12248052 14997732 24496104 28745653 29995464 57491306 86236959 114982612 172473918 229965224 248712389 278707853 344947836 497424778 557415706 689895672 746137167 836123559 994849556 1114831412 1492274334 1672247118 1989699112 2229662824 2984548668 3344494236 5720384947 5969097336 6410280619 6688988472 11440769894 12820561238 17161154841 19230841857 22881539788 25641122476 34322309682 38461683714 45763079576 51282244952 55462862747 68644619364 76923367428 110925725494 137289238728 153846734856 166388588241 221851450988 332777176482 443702901976 665554352964 1275645843181 1331108705928 2551291686362 3826937529543 5102583372724 7653875059086 10205166745448 15307750118172 30615500236344