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285713390 = 25178320249
BaseRepresentation
bin10001000001111…
…010001111101110
3201220121202002102
4101001322033232
51041120312030
644203455102
710036344434
oct2101721756
9656552072
10285713390
11137306776
127b827492
13472680a1
1429d34d54
151a13ac45
hex1107a3ee

285713390 has 32 divisors (see below), whose sum is σ = 551124000. Its totient is φ = 106261504.

The previous prime is 285713377. The next prime is 285713411. The reversal of 285713390 is 93317582.

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, 3986 + ... + 24234.

It is an arithmetic number, because the mean of its divisors is an integer number (17222625).

Almost surely, 2285713390 is an apocalyptic number.

285713390 is a deficient number, since it is larger than the sum of its proper divisors (265410610).

285713390 is a wasteful number, since it uses less digits than its factorization.

285713390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20356.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 285713390 is about 16903.0585989637. The cubic root of 285713390 is about 658.6330677354.

The spelling of 285713390 in words is "two hundred eighty-five million, seven hundred thirteen thousand, three hundred ninety".

Divisors: 1 2 5 10 17 34 83 85 166 170 415 830 1411 2822 7055 14110 20249 40498 101245 202490 344233 688466 1680667 1721165 3361334 3442330 8403335 16806670 28571339 57142678 142856695 285713390