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284430960 = 243351111971
BaseRepresentation
bin10000111101000…
…001001001110000
3201211012120221000
4100331001021300
51040303242320
644120202000
710022423532
oct2075011160
9654176830
10284430960
11136610210
127b309300
1346c09458
1429abd852
1519e85c90
hex10f41270

284430960 has 160 divisors (see below), whose sum is σ = 1068860160. Its totient is φ = 68947200.

The previous prime is 284430953. The next prime is 284430977. The reversal of 284430960 is 69034482.

It is a happy number.

284430960 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 (36).

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, 17775 + ... + 29745.

It is an arithmetic number, because the mean of its divisors is an integer number (6680376).

Almost surely, 2284430960 is an apocalyptic number.

284430960 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 284430960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534430080).

284430960 is an abundant number, since it is smaller than the sum of its proper divisors (784429200).

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

284430960 is a wasteful number, since it uses less digits than its factorization.

284430960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004 (or 11992 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 284430960 is about 16865.0810848925. The cubic root of 284430960 is about 657.6461606469.

It can be divided in two parts, 284430 and 960, that added together give a triangular number (285390 = T755).

The spelling of 284430960 in words is "two hundred eighty-four million, four hundred thirty thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 33 36 40 44 45 48 54 55 60 66 72 80 88 90 99 108 110 120 132 135 144 165 176 180 198 216 220 240 264 270 297 330 360 396 432 440 495 528 540 594 660 720 792 880 990 1080 1188 1320 1485 1584 1980 2160 2376 2640 2970 3960 4752 5940 7920 11880 11971 23760 23942 35913 47884 59855 71826 95768 107739 119710 131681 143652 179565 191536 215478 239420 263362 287304 323217 359130 395043 430956 478840 526724 538695 574608 646434 658405 718260 790086 861912 957680 1053448 1077390 1185129 1292868 1316810 1436520 1580172 1616085 1723824 1975215 2106896 2154780 2370258 2585736 2633620 2873040 3160344 3232170 3555387 3950430 4309560 4740516 5171472 5267240 5925645 6320688 6464340 7110774 7900860 8619120 9481032 10534480 11851290 12928680 14221548 15801720 17776935 18962064 23702580 25857360 28443096 31603440 35553870 47405160 56886192 71107740 94810320 142215480 284430960