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286213088 = 2571775161
BaseRepresentation
bin10001000011110…
…100001111100000
3201221120010112202
4101003310033200
51041232304323
644222312332
710043525330
oct2103641740
9657503482
10286213088
11137618147
127ba286a8
13473b1675
142a0250c0
151a1d8d28
hex110f43e0

286213088 has 48 divisors (see below), whose sum is σ = 681869664. Its totient is φ = 115445760.

The previous prime is 286213043. The next prime is 286213121. The reversal of 286213088 is 880312682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33773 + ... + 41388.

It is an arithmetic number, because the mean of its divisors is an integer number (14205618).

Almost surely, 2286213088 is an apocalyptic number.

286213088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

286213088 is an abundant number, since it is smaller than the sum of its proper divisors (395656576).

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

286213088 is a wasteful number, since it uses less digits than its factorization.

286213088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75195 (or 75187 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 286213088 is about 16917.8334310277. The cubic root of 286213088 is about 659.0168158719.

The spelling of 286213088 in words is "two hundred eighty-six million, two hundred thirteen thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 75161 150322 300644 526127 601288 1052254 1202576 1277737 2104508 2405152 2555474 4209016 5110948 8418032 8944159 10221896 16836064 17888318 20443792 35776636 40887584 71553272 143106544 286213088