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285045344 = 25149191313
BaseRepresentation
bin10000111111010…
…111001001100000
3201212100210200222
4100333113021200
51040432422334
644141302212
710030562663
oct2077271140
9655323628
10285045344
1113699a871
127b564968
1347092cac
1429bdd6da
151a057d2e
hex10fd7260

285045344 has 48 divisors (see below), whose sum is σ = 569721600. Its totient is φ = 140375040.

The previous prime is 285045329. The next prime is 285045347. The reversal of 285045344 is 443540582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285045347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910532 + ... + 910844.

It is an arithmetic number, because the mean of its divisors is an integer number (11869200).

Almost surely, 2285045344 is an apocalyptic number.

It is an amenable number.

285045344 is a deficient number, since it is larger than the sum of its proper divisors (284676256).

285045344 is a wasteful number, since it uses less digits than its factorization.

285045344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The square root of 285045344 is about 16883.2859360967. The cubic root of 285045344 is about 658.1193354695.

The spelling of 285045344 in words is "two hundred eighty-five million, forty-five thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 149 191 298 313 382 596 626 764 1192 1252 1528 2384 2504 3056 4768 5008 6112 10016 28459 46637 56918 59783 93274 113836 119566 186548 227672 239132 373096 455344 478264 746192 910688 956528 1492384 1913056 8907667 17815334 35630668 71261336 142522672 285045344