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286630272 = 2733197421
BaseRepresentation
bin10001000101011…
…010000110000000
3201222100022211000
4101011122012000
51041334132042
644235252000
710050213525
oct2105320600
9658308730
10286630272
11137882625
127bbaa000
13474c9516
142a0d314c
151a26c74c
hex1115a180

286630272 has 128 divisors (see below), whose sum is σ = 852271200. Its totient is φ = 94832640.

The previous prime is 286630271. The next prime is 286630273. The reversal of 286630272 is 272036682.

286630272 is a `hidden beast` number, since 286 + 6 + 302 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (286630271) and next prime (286630273).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286630271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680622 + ... + 681042.

Almost surely, 2286630272 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 286630272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426135600).

286630272 is an abundant number, since it is smaller than the sum of its proper divisors (565640928).

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

286630272 is a wasteful number, since it uses less digits than its factorization.

286630272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 286630272 is about 16930.1586525348. The cubic root of 286630272 is about 659.3368545785.

The spelling of 286630272 in words is "two hundred eighty-six million, six hundred thirty thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 197 216 288 384 394 421 432 576 591 788 842 864 1152 1182 1263 1576 1684 1728 1773 2364 2526 3152 3368 3456 3546 3789 4728 5052 5319 6304 6736 7092 7578 9456 10104 10638 11367 12608 13472 14184 15156 18912 20208 21276 22734 25216 26944 28368 30312 37824 40416 42552 45468 53888 56736 60624 75648 80832 82937 85104 90936 113472 121248 161664 165874 170208 181872 226944 242496 248811 331748 340416 363744 484992 497622 663496 680832 727488 746433 995244 1326992 1454976 1492866 1990488 2239299 2653984 2985732 3980976 4478598 5307968 5971464 7961952 8957196 10615936 11942928 15923904 17914392 23885856 31847808 35828784 47771712 71657568 95543424 143315136 286630272