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305700864 = 213371777
BaseRepresentation
bin10010001110001…
…010000000000000
3210022020012202020
4102032022000000
51111224411424
650200121440
710401262110
oct2216120000
9708205666
10305700864
11147618647
1286466280
134b4458b1
142c859040
151bc88079
hex1238a000

305700864 has 112 divisors (see below), whose sum is σ = 932127168. Its totient is φ = 87293952.

The previous prime is 305700853. The next prime is 305700883. The reversal of 305700864 is 468007503.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171144 + ... + 172920.

It is an arithmetic number, because the mean of its divisors is an integer number (8322564).

Almost surely, 2305700864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305700864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466063584).

305700864 is an abundant number, since it is smaller than the sum of its proper divisors (626426304).

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

305700864 is an equidigital number, since it uses as much as digits as its factorization.

305700864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 305700864 is about 17484.3033604430. The cubic root of 305700864 is about 673.6467549351.

The spelling of 305700864 in words is "three hundred five million, seven hundred thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 512 672 768 896 1024 1344 1536 1777 1792 2048 2688 3072 3554 3584 4096 5331 5376 6144 7108 7168 8192 10662 10752 12288 12439 14216 14336 21324 21504 24576 24878 28432 28672 37317 42648 43008 49756 56864 57344 74634 85296 86016 99512 113728 149268 170592 172032 199024 227456 298536 341184 398048 454912 597072 682368 796096 909824 1194144 1364736 1592192 1819648 2388288 2729472 3184384 3639296 4776576 5458944 6368768 7278592 9553152 10917888 12737536 14557184 19106304 21835776 25475072 38212608 43671552 50950144 76425216 101900288 152850432 305700864