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12383189028 = 22327175354539
BaseRepresentation
bin10111000100001100…
…00111100000100100
31011222000011011212200
423202012013200210
5200330044022103
65404434414500
7615603240630
oct134206074044
934860134780
1012383189028
115284a95221
122497131430
13122466b3b2
14856887dc0
154c72130a3
hex2e2187824

12383189028 has 144 divisors (see below), whose sum is σ = 38593376640. Its totient is φ = 3267044352.

The previous prime is 12383189009. The next prime is 12383189083. The reversal of 12383189028 is 82098138321.

It is a happy 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 47 ways as a sum of consecutive naturals, for example, 199783 + ... + 254321.

It is an arithmetic number, because the mean of its divisors is an integer number (268009560).

Almost surely, 212383189028 is an apocalyptic number.

12383189028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12383189028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19296688320).

12383189028 is an abundant number, since it is smaller than the sum of its proper divisors (26210187612).

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

12383189028 is a wasteful number, since it uses less digits than its factorization.

12383189028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54626 (or 54621 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 12383189028 in words is "twelve billion, three hundred eighty-three million, one hundred eighty-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 17 18 21 28 34 36 42 51 53 63 68 84 102 106 119 126 153 159 204 212 238 252 306 318 357 371 476 477 612 636 714 742 901 954 1071 1113 1428 1484 1802 1908 2142 2226 2703 3339 3604 4284 4452 5406 6307 6678 8109 10812 12614 13356 16218 18921 25228 32436 37842 54539 56763 75684 109078 113526 163617 218156 227052 327234 381773 490851 654468 763546 927163 981702 1145319 1527092 1854326 1963404 2290638 2781489 2890567 3435957 3708652 4581276 5562978 5781134 6490141 6871914 8344467 8671701 11125956 11562268 12980282 13743828 16688934 17343402 19470423 20233969 25960564 26015103 33377868 34686804 38940846 40467938 49139639 52030206 58411269 60701907 77881692 80935876 98279278 104060412 116822538 121403814 147418917 182105721 196558556 233645076 242807628 294837834 343977473 364211442 442256751 589675668 687954946 728422884 884513502 1031932419 1375909892 1769027004 2063864838 3095797257 4127729676 6191594514 12383189028