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284430144 = 26323292221
BaseRepresentation
bin10000111101000…
…000111101000000
3201211012112210210
4100331000331000
51040303231034
644120154120
710022421255
oct2075007500
9654175723
10284430144
1113660a639
127b308940
1346c08c7b
1429abd42c
1519e858e9
hex10f40f40

284430144 has 112 divisors (see below), whose sum is σ = 812718720. Its totient is φ = 87521280.

The previous prime is 284430131. The next prime is 284430151. The reversal of 284430144 is 441034482.

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 15 ways as a sum of consecutive naturals, for example, 126954 + ... + 129174.

Almost surely, 2284430144 is an apocalyptic number.

284430144 is a gapful number since it is divisible by the number (24) 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 284430144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406359360).

284430144 is an abundant number, since it is smaller than the sum of its proper divisors (528288576).

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

284430144 is a wasteful number, since it uses less digits than its factorization.

284430144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2278 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 284430144 is about 16865.0568928777. The cubic root of 284430144 is about 657.6455317424.

The spelling of 284430144 in words is "two hundred eighty-four million, four hundred thirty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 29 32 46 48 58 64 69 87 92 96 116 138 174 184 192 232 276 348 368 464 552 667 696 736 928 1104 1334 1392 1472 1856 2001 2208 2221 2668 2784 4002 4416 4442 5336 5568 6663 8004 8884 10672 13326 16008 17768 21344 26652 32016 35536 42688 51083 53304 64032 64409 71072 102166 106608 128064 128818 142144 153249 193227 204332 213216 257636 306498 386454 408664 426432 515272 612996 772908 817328 1030544 1225992 1481407 1545816 1634656 2061088 2451984 2962814 3091632 3269312 4122176 4444221 4903968 5925628 6183264 8888442 9807936 11851256 12366528 17776884 23702512 35553768 47405024 71107536 94810048 142215072 284430144