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802285 = 51129503
BaseRepresentation
bin11000011110111101101
31111202112021
43003313231
5201133120
625110141
76551011
oct3036755
91452467
10802285
114a8850
12328351
13221233
1416c541
1510caaa
hexc3ded

802285 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 562240.

The previous prime is 802283. The next prime is 802297. The reversal of 802285 is 582208.

It is not a de Polignac number, because 802285 - 21 = 802283 is a prime.

It is a super-2 number, since 2×8022852 = 1287322442450, which contains 22 as substring.

802285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344 + ... + 1846.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2802285 is an apocalyptic number.

It is an amenable number.

802285 is a deficient number, since it is larger than the sum of its proper divisors (286355).

802285 is a wasteful number, since it uses less digits than its factorization.

802285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 802285 is about 895.7036340219. The cubic root of 802285 is about 92.9200762444.

The spelling of 802285 in words is "eight hundred two thousand, two hundred eighty-five".

Divisors: 1 5 11 29 55 145 319 503 1595 2515 5533 14587 27665 72935 160457 802285