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12916020960 = 2532515435813
BaseRepresentation
bin11000000011101101…
…01101011011100000
31020100010202211212200
430001312231123200
5202423000132320
65533351053200
7635033236533
oct140166553340
936303684780
1012916020960
115528836797
122605671200
1312aab7a46b
148a7548a1a
15508db4290
hex301dad6e0

12916020960 has 144 divisors (see below), whose sum is σ = 44112073824. Its totient is φ = 3441447936.

The previous prime is 12916020937. The next prime is 12916020961. The reversal of 12916020960 is 6902061921.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12916020961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2219014 + ... + 2224826.

It is an arithmetic number, because the mean of its divisors is an integer number (306333846).

Almost surely, 212916020960 is an apocalyptic number.

12916020960 is a gapful number since it is divisible by the number (10) 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 12916020960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22056036912).

12916020960 is an abundant number, since it is smaller than the sum of its proper divisors (31196052864).

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

12916020960 is a wasteful number, since it uses less digits than its factorization.

12916020960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377 (or 7366 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 12916020960 in words is "twelve billion, nine hundred sixteen million, twenty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 1543 3086 4629 5813 6172 7715 9258 11626 12344 13887 15430 17439 18516 23145 23252 24688 27774 29065 30860 34878 37032 46290 46504 49376 52317 55548 58130 61720 69435 69756 74064 87195 92580 93008 104634 111096 116260 123440 138870 139512 148128 174390 185160 186016 209268 222192 232520 246880 261585 277740 279024 348780 370320 418536 444384 465040 523170 555480 558048 697560 740640 837072 930080 1046340 1110960 1395120 1674144 2092680 2221920 2790240 4185360 8370720 8969459 17938918 26908377 35877836 44847295 53816754 71755672 80725131 89694590 107633508 134541885 143511344 161450262 179389180 215267016 269083770 287022688 322900524 358778360 403625655 430534032 538167540 645801048 717556720 807251310 861068064 1076335080 1291602096 1435113440 1614502620 2152670160 2583204192 3229005240 4305340320 6458010480 12916020960