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902285 = 5181997
BaseRepresentation
bin11011100010010001101
31200211200222
43130102031
5212333120
631201125
710445366
oct3342215
91624628
10902285
1156699a
123761a5
132578c7
14196b6d
1512c525
hexdc48d

902285 has 8 divisors (see below), whose sum is σ = 1089816. Its totient is φ = 717120.

The previous prime is 902281. The next prime is 902299. The reversal of 902285 is 582209.

902285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29929 + 872356 = 173^2 + 934^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 902285 - 22 = 902281 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (902281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (136227).

2902285 is an apocalyptic number.

It is an amenable number.

902285 is a deficient number, since it is larger than the sum of its proper divisors (187531).

902285 is a wasteful number, since it uses less digits than its factorization.

902285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 902285 is about 949.8868353651. The cubic root of 902285 is about 96.6305784169.

The spelling of 902285 in words is "nine hundred two thousand, two hundred eighty-five".

Divisors: 1 5 181 905 997 4985 180457 902285