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288894220142 = 21161311692191
BaseRepresentation
bin1000011010000110110…
…11111111011101101110
31000121200112102221211012
410031003123333131232
514213123410021032
6340414405425222
726605032232403
oct4150333773556
91017615387735
10288894220142
1110157928a540
1247ba610b212
1321320018a38
14dda81b82aa
1577ac6c76b2
hex43436ff76e

288894220142 has 32 divisors (see below), whose sum is σ = 482031433728. Its totient is φ = 128747340000.

The previous prime is 288894220099. The next prime is 288894220159. The reversal of 288894220142 is 241022498882.

It is a super-3 number, since 3×2888942201423 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71267 + ... + 763457.

It is an arithmetic number, because the mean of its divisors is an integer number (15063482304).

Almost surely, 2288894220142 is an apocalyptic number.

288894220142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

288894220142 is a deficient number, since it is larger than the sum of its proper divisors (193137213586).

288894220142 is a wasteful number, since it uses less digits than its factorization.

288894220142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692576.

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 288894220142 in words is "two hundred eighty-eight billion, eight hundred ninety-four million, two hundred twenty thousand, one hundred forty-two".

Divisors: 1 2 11 22 61 122 311 622 671 1342 3421 6842 18971 37942 208681 417362 692191 1384382 7614101 15228202 42223651 84447302 215271401 430542802 464460161 928920322 2367985411 4735970822 13131555461 26263110922 144447110071 288894220142