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12086880 = 2535132149
BaseRepresentation
bin101110000110…
…111001100000
3211202002002020
4232012321200
511043240010
61111021440
7204510501
oct56067140
924662066
1012086880
116906063
12406a880
132672700
141868ba8
1510db470
hexb86e60

12086880 has 144 divisors (see below), whose sum is σ = 41504400. Its totient is φ = 2955264.

The previous prime is 12086863. The next prime is 12086887. The reversal of 12086880 is 8868021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12086887) 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 23 ways as a sum of consecutive naturals, for example, 81046 + ... + 81194.

It is an arithmetic number, because the mean of its divisors is an integer number (288225).

Almost surely, 212086880 is an apocalyptic number.

12086880 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 12086880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20752200).

12086880 is an abundant number, since it is smaller than the sum of its proper divisors (29417520).

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

12086880 is a wasteful number, since it uses less digits than its factorization.

12086880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 12086880 is about 3476.6190472929. The cubic root of 12086880 is about 229.4940358521.

The spelling of 12086880 in words is "twelve million, eighty-six thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 149 156 160 169 195 208 240 260 298 312 338 390 416 447 480 507 520 596 624 676 745 780 845 894 1014 1040 1192 1248 1352 1490 1560 1690 1788 1937 2028 2080 2235 2384 2535 2704 2980 3120 3380 3576 3874 4056 4470 4768 5070 5408 5811 5960 6240 6760 7152 7748 8112 8940 9685 10140 11622 11920 13520 14304 15496 16224 17880 19370 20280 23244 23840 25181 27040 29055 30992 35760 38740 40560 46488 50362 58110 61984 71520 75543 77480 81120 92976 100724 116220 125905 151086 154960 185952 201448 232440 251810 302172 309920 377715 402896 464880 503620 604344 755430 805792 929760 1007240 1208688 1510860 2014480 2417376 3021720 4028960 6043440 12086880