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230412240 = 243251916843
BaseRepresentation
bin11011011101111…
…00111111010000
3121001120011011200
431232330333100
5432441142430
634510311200
75465320542
oct1556747720
9531504150
10230412240
11109075143
12651b8500
1338974b06
142285b692
1515365460
hexdbbcfd0

230412240 has 120 divisors (see below), whose sum is σ = 814575840. Its totient is φ = 58205952.

The previous prime is 230412239. The next prime is 230412241. The reversal of 230412240 is 42214032.

230412240 is a `hidden beast` number, since 230 + 412 + 24 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (230412239) and next prime (230412241).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230412241) 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, 5259 + ... + 22101.

It is an arithmetic number, because the mean of its divisors is an integer number (6788132).

Almost surely, 2230412240 is an apocalyptic number.

230412240 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 230412240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407287920).

230412240 is an abundant number, since it is smaller than the sum of its proper divisors (584163600).

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

230412240 is a wasteful number, since it uses less digits than its factorization.

230412240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16881 (or 16872 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 230412240 is about 15179.3359538552. The cubic root of 230412240 is about 613.0584017729.

Adding to 230412240 its reverse (42214032), we get a palindrome (272626272).

It can be divided in two parts, 23041 and 2240, that added together give a square (25281 = 1592).

The spelling of 230412240 in words is "two hundred thirty million, four hundred twelve thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 36 38 40 45 48 57 60 72 76 80 90 95 114 120 144 152 171 180 190 228 240 285 304 342 360 380 456 570 684 720 760 855 912 1140 1368 1520 1710 2280 2736 3420 4560 6840 13680 16843 33686 50529 67372 84215 101058 134744 151587 168430 202116 252645 269488 303174 320017 336860 404232 505290 606348 640034 673720 757935 808464 960051 1010580 1212696 1280068 1347440 1515870 1600085 1920102 2021160 2425392 2560136 2880153 3031740 3200170 3840204 4042320 4800255 5120272 5760306 6063480 6400340 7680408 9600510 11520612 12126960 12800680 14400765 15360816 19201020 23041224 25601360 28801530 38402040 46082448 57603060 76804080 115206120 230412240