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285093459028 = 227292089168071
BaseRepresentation
bin1000010011000001110…
…01001111010001010100
31000020212122122021202001
410021200321033101110
514132332411142103
6334545314125044
726411611263250
oct4114071172124
91006778567661
10285093459028
11aa9a8909454
1247305280784
1320b65776071
14db274c9260
157638bab01d
hex4260e4f454

285093459028 has 48 divisors (see below), whose sum is σ = 590134406400. Its totient is φ = 117912533760.

The previous prime is 285093458971. The next prime is 285093459031. The reversal of 285093459028 is 820954390582.

It is a self number, because there is not a number n which added to its sum of digits gives 285093459028.

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, 1612233 + ... + 1780303.

It is an arithmetic number, because the mean of its divisors is an integer number (12294466800).

Almost surely, 2285093459028 is an apocalyptic number.

285093459028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285093459028 is an abundant number, since it is smaller than the sum of its proper divisors (305040947372).

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

285093459028 is a wasteful number, since it uses less digits than its factorization.

285093459028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170200 (or 170198 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 285093459028 in words is "two hundred eighty-five billion, ninety-three million, four hundred fifty-nine thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 2089 4178 8356 14623 29246 58492 60581 121162 168071 242324 336142 424067 672284 848134 1176497 1696268 2352994 4705988 4874059 9748118 19496236 34118413 68236826 136473652 351100319 702200638 1404401276 2457702233 4915404466 9830808932 10181909251 20363818502 40727637004 71273364757 142546729514 285093459028