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285585240725 = 5215677289987
BaseRepresentation
bin1000010011111100011…
…01001111001010010101
31000022010221000101101222
410021332031033022111
514134334310200400
6335110202500125
726430032331161
oct4117615171225
91008127011358
10285585240725
11100130472304
1247421b04645
1320c13611555
14db72941ca1
157666e4e185
hex427e34f295

285585240725 has 12 divisors (see below), whose sum is σ = 354351736704. Its totient is φ = 228322361520.

The previous prime is 285585240701. The next prime is 285585240763. The reversal of 285585240725 is 527042585582.

It is not a de Polignac number, because 285585240725 - 214 = 285585224341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3605819 + ... + 3684168.

It is an arithmetic number, because the mean of its divisors is an integer number (29529311392).

Almost surely, 2285585240725 is an apocalyptic number.

285585240725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

285585240725 is a deficient number, since it is larger than the sum of its proper divisors (68766495979).

285585240725 is a wasteful number, since it uses less digits than its factorization.

285585240725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291564 (or 7291559 counting only the distinct ones).

The product of its (nonzero) digits is 8960000, while the sum is 53.

The spelling of 285585240725 in words is "two hundred eighty-five billion, five hundred eighty-five million, two hundred forty thousand, seven hundred twenty-five".

Divisors: 1 5 25 1567 7835 39175 7289987 36449935 182249675 11423409629 57117048145 285585240725