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285085000893 = 37115397123981
BaseRepresentation
bin1000010011000000110…
…00111110010010111101
31000020212001201120100210
410021200120332102331
514132323230012033
6334544412543033
726411446345050
oct4114030762275
91006761646323
10285085000893
11aa9a4061760
1247302481a79
1320b63aa4254
14db26326a97
157638089d63
hex426063e4bd

285085000893 has 64 divisors (see below), whose sum is σ = 483366610944. Its totient is φ = 145146144000.

The previous prime is 285085000841. The next prime is 285085000903. The reversal of 285085000893 is 398000580582.

It is not a de Polignac number, because 285085000893 - 26 = 285085000829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285085000093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11875963 + ... + 11899943.

It is an arithmetic number, because the mean of its divisors is an integer number (7552603296).

Almost surely, 2285085000893 is an apocalyptic number.

It is an amenable number.

285085000893 is a deficient number, since it is larger than the sum of its proper divisors (198281610051).

285085000893 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (285085000892) it forms an eRAP, since the sums of their prime factors are consecutive (25025 and 25026).

285085000893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25026.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 285085000893 in words is "two hundred eighty-five billion, eighty-five million, eight hundred ninety-three", and thus it is an aban number.

Divisors: 1 3 7 11 21 33 53 77 159 231 371 583 971 1113 1749 2913 4081 6797 10681 12243 20391 23981 32043 51463 71943 74767 154389 167867 224301 263791 360241 503601 566093 791373 1080723 1270993 1698279 1846537 3812979 3962651 5539611 8896951 11887953 13980923 23285551 26690853 41942769 69856653 97866461 162998857 256141061 293599383 488996571 768423183 1234134203 1792987427 3702402609 5378962281 8638939421 13575476233 25916818263 40726428699 95028333631 285085000893