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12967680 = 283511307
BaseRepresentation
bin110001011101…
…111100000000
3220101211022110
4301131330000
511304431210
61141535320
7215136435
oct61357400
926354273
1012967680
1173578a0
124414540
1328c05ab
141a17b8c
151212420
hexc5df00

12967680 has 144 divisors (see below), whose sum is σ = 45327744. Its totient is φ = 3133440.

The previous prime is 12967679. The next prime is 12967687. The reversal of 12967680 is 8676921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12967687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42087 + ... + 42393.

It is an arithmetic number, because the mean of its divisors is an integer number (314776).

Almost surely, 212967680 is an apocalyptic number.

12967680 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 12967680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22663872).

12967680 is an abundant number, since it is smaller than the sum of its proper divisors (32360064).

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

12967680 is a wasteful number, since it uses less digits than its factorization.

12967680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 12967680 is about 3601.0665086888. The cubic root of 12967680 is about 234.9384477393.

The spelling of 12967680 in words is "twelve million, nine hundred sixty-seven thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 256 264 307 320 330 352 384 440 480 528 614 640 660 704 768 880 921 960 1056 1228 1280 1320 1408 1535 1760 1842 1920 2112 2456 2640 2816 3070 3377 3520 3684 3840 4224 4605 4912 5280 6140 6754 7040 7368 8448 9210 9824 10131 10560 12280 13508 14080 14736 16885 18420 19648 20262 21120 24560 27016 29472 33770 36840 39296 40524 42240 49120 50655 54032 58944 67540 73680 78592 81048 98240 101310 108064 117888 135080 147360 162096 196480 202620 216128 235776 270160 294720 324192 392960 405240 432256 540320 589440 648384 810480 864512 1080640 1178880 1296768 1620960 2161280 2593536 3241920 4322560 6483840 12967680