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12905076576 = 253743344351
BaseRepresentation
bin11000000010011001…
…11101011101100000
31020022101011211000010
430001030331131200
5202412144422301
65532320324520
7634541224650
oct140114753540
936271154003
1012905076576
115522641047
122601a73740
1312a8817ab2
148a5cda360
15507e515d6
hex30133d760

12905076576 has 96 divisors (see below), whose sum is σ = 38805516288. Its totient is φ = 3678566400.

The previous prime is 12905076571. The next prime is 12905076637. The reversal of 12905076576 is 67567050921.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905076571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268801 + ... + 313151.

It is an arithmetic number, because the mean of its divisors is an integer number (404224128).

Almost surely, 212905076576 is an apocalyptic number.

12905076576 is a gapful number since it is divisible by the number (16) 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 12905076576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19402758144).

12905076576 is an abundant number, since it is smaller than the sum of its proper divisors (25900439712).

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

12905076576 is a wasteful number, since it uses less digits than its factorization.

12905076576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44804 (or 44796 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 48.

The spelling of 12905076576 in words is "twelve billion, nine hundred five million, seventy-six thousand, five hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 433 672 866 1299 1732 2598 3031 3464 5196 6062 6928 9093 10392 12124 13856 18186 20784 24248 36372 41568 44351 48496 72744 88702 96992 133053 145488 177404 266106 290976 310457 354808 532212 620914 709616 931371 1064424 1241828 1419232 1862742 2128848 2483656 3725484 4257696 4967312 7450968 9934624 14901936 19203983 29803872 38407966 57611949 76815932 115223898 134427881 153631864 230447796 268855762 307263728 403283643 460895592 537711524 614527456 806567286 921791184 1075423048 1613134572 1843582368 2150846096 3226269144 4301692192 6452538288 12905076576