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286672896 = 21132103151
BaseRepresentation
bin10001000101100…
…100100000000000
3201222102111021200
4101011210200000
51041342013041
644240221200
710050452016
oct2105444000
9658374250
10286672896
11137901654
128000a800
1347512a43
142a1048b6
151a27a1b6
hex11164800

286672896 has 144 divisors (see below), whose sum is σ = 841538880. Its totient is φ = 94003200.

The previous prime is 286672891. The next prime is 286672907. The reversal of 286672896 is 698276682.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (286672891) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1898421 + ... + 1898571.

It is an arithmetic number, because the mean of its divisors is an integer number (5844020).

Almost surely, 2286672896 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 286672896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420769440).

286672896 is an abundant number, since it is smaller than the sum of its proper divisors (554865984).

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

286672896 is a wasteful number, since it uses less digits than its factorization.

286672896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 259 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 286672896 is about 16931.4174244214. The cubic root of 286672896 is about 659.3695356824.

The spelling of 286672896 in words is "two hundred eighty-six million, six hundred seventy-two thousand, eight hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 103 128 144 151 192 206 256 288 302 309 384 412 453 512 576 604 618 768 824 906 927 1024 1152 1208 1236 1359 1536 1648 1812 1854 2048 2304 2416 2472 2718 3072 3296 3624 3708 4608 4832 4944 5436 6144 6592 7248 7416 9216 9664 9888 10872 13184 14496 14832 15553 18432 19328 19776 21744 26368 28992 29664 31106 38656 39552 43488 46659 52736 57984 59328 62212 77312 79104 86976 93318 105472 115968 118656 124424 139977 154624 158208 173952 186636 210944 231936 237312 248848 279954 309248 316416 347904 373272 463872 474624 497696 559908 632832 695808 746544 927744 949248 995392 1119816 1391616 1493088 1898496 1990784 2239632 2783232 2986176 3981568 4479264 5972352 7963136 8958528 11944704 15926272 17917056 23889408 31852544 35834112 47778816 71668224 95557632 143336448 286672896