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288904494 = 2317103107257
BaseRepresentation
bin10001001110000…
…101010100101110
3202010121212110110
4101032011110232
51042424420434
644400120450
710105435104
oct2116052456
9663555413
10288904494
1113909624a
1280906126
1347b14708
142a525c74
151a56b4e9
hex1138552e

288904494 has 64 divisors (see below), whose sum is σ = 625936896. Its totient is φ = 88571904.

The previous prime is 288904459. The next prime is 288904507. The reversal of 288904494 is 494409882.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1124014 + ... + 1124270.

It is an arithmetic number, because the mean of its divisors is an integer number (9780264).

Almost surely, 2288904494 is an apocalyptic number.

288904494 is an abundant number, since it is smaller than the sum of its proper divisors (337032402).

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

288904494 is a wasteful number, since it uses less digits than its factorization.

288904494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 288904494 is about 16997.1907678887. The cubic root of 288904494 is about 661.0760637328.

The spelling of 288904494 in words is "two hundred eighty-eight million, nine hundred four thousand, four hundred ninety-four".

Divisors: 1 2 3 6 17 34 51 102 103 107 206 214 257 309 321 514 618 642 771 1542 1751 1819 3502 3638 4369 5253 5457 8738 10506 10914 11021 13107 22042 26214 26471 27499 33063 52942 54998 66126 79413 82497 158826 164994 187357 374714 450007 467483 562071 900014 934966 1124142 1350021 1402449 2700042 2804898 2832397 5664794 8497191 16994382 48150749 96301498 144452247 288904494