Search a number
-
+
286983120 = 243517312269
BaseRepresentation
bin10001000110110…
…000001111010000
3202000000020211110
4101012300033100
51041431424440
644251013320
710053213324
oct2106601720
9660006743
10286983120
11137aa3736
128013a240
13475c0cc8
142a185984
151a2dc080
hex111b03d0

286983120 has 160 divisors (see below), whose sum is σ = 972794880. Its totient is φ = 69672960.

The previous prime is 286983119. The next prime is 286983131. The reversal of 286983120 is 21389682.

It is a happy number.

It is a super-2 number, since 2×2869831202 = 164718622329868800, which contains 22 as substring.

It is a congruent number.

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, 125346 + ... + 127614.

It is an arithmetic number, because the mean of its divisors is an integer number (6079968).

Almost surely, 2286983120 is an apocalyptic number.

286983120 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 286983120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486397440).

286983120 is an abundant number, since it is smaller than the sum of its proper divisors (685811760).

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

286983120 is a wasteful number, since it uses less digits than its factorization.

286983120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 286983120 is about 16940.5761413241. The cubic root of 286983120 is about 659.6072962292.

The spelling of 286983120 in words is "two hundred eighty-six million, nine hundred eighty-three thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 31 34 40 48 51 60 62 68 80 85 93 102 120 124 136 155 170 186 204 240 248 255 272 310 340 372 408 465 496 510 527 620 680 744 816 930 1020 1054 1240 1360 1488 1581 1860 2040 2108 2269 2480 2635 3162 3720 4080 4216 4538 5270 6324 6807 7440 7905 8432 9076 10540 11345 12648 13614 15810 18152 21080 22690 25296 27228 31620 34035 36304 38573 42160 45380 54456 63240 68070 70339 77146 90760 108912 115719 126480 136140 140678 154292 181520 192865 211017 231438 272280 281356 308584 351695 385730 422034 462876 544560 562712 578595 617168 703390 771460 844068 925752 1055085 1125424 1157190 1195763 1406780 1542920 1688136 1851504 2110170 2314380 2391526 2813560 3085840 3376272 3587289 4220340 4628760 4783052 5627120 5978815 7174578 8440680 9257520 9566104 11957630 14349156 16881360 17936445 19132208 23915260 28698312 35872890 47830520 57396624 71745780 95661040 143491560 286983120