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286120080 = 24335314273
BaseRepresentation
bin10001000011011…
…101100010010000
3201221101101222000
4101003131202100
51041221320310
644220314000
710042660221
oct2103354220
9657341860
10286120080
11137564284
127b9a2900
134737b22c
1429ddd248
151a1bb4c0
hex110dd890

286120080 has 160 divisors (see below), whose sum is σ = 1017553920. Its totient is φ = 73820160.

The previous prime is 286120063. The next prime is 286120091. The reversal of 286120080 is 80021682.

286120080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 64824 + ... + 69096.

It is an arithmetic number, because the mean of its divisors is an integer number (6359712).

Almost surely, 2286120080 is an apocalyptic number.

286120080 is a gapful number since it is divisible by the number (20) 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 286120080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508776960).

286120080 is an abundant number, since it is smaller than the sum of its proper divisors (731433840).

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

286120080 is a wasteful number, since it uses less digits than its factorization.

286120080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4314 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 286120080 is about 16915.0843923405. The cubic root of 286120080 is about 658.9454232869.

The spelling of 286120080 in words is "two hundred eighty-six million, one hundred twenty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 31 36 40 45 48 54 60 62 72 80 90 93 108 120 124 135 144 155 180 186 216 240 248 270 279 310 360 372 432 465 496 540 558 620 720 744 837 930 1080 1116 1240 1395 1488 1674 1860 2160 2232 2480 2790 3348 3720 4185 4273 4464 5580 6696 7440 8370 8546 11160 12819 13392 16740 17092 21365 22320 25638 33480 34184 38457 42730 51276 64095 66960 68368 76914 85460 102552 115371 128190 132463 153828 170920 192285 205104 230742 256380 264926 307656 341840 384570 397389 461484 512760 529852 576855 615312 662315 769140 794778 922968 1025520 1059704 1153710 1192167 1324630 1538280 1589556 1845936 1986945 2119408 2307420 2384334 2649260 3076560 3179112 3576501 3973890 4614840 4768668 5298520 5960835 6358224 7153002 7947780 9229680 9537336 10597040 11921670 14306004 15895560 17882505 19074672 23843340 28612008 31791120 35765010 47686680 57224016 71530020 95373360 143060040 286120080