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302224 = 24131453
BaseRepresentation
bin1001001110010010000
3120100120111
41021302100
534132344
610251104
72366056
oct1116220
9510514
10302224
1119707a
12126a94
13a7740
147c1d6
155e834
hex49c90

302224 has 20 divisors (see below), whose sum is σ = 631036. Its totient is φ = 139392.

The previous prime is 302221. The next prime is 302227. The reversal of 302224 is 422203.

It is an interprime number because it is at equal distance from previous prime (302221) and next prime (302227).

It can be written as a sum of positive squares in 2 ways, for example, as 186624 + 115600 = 432^2 + 340^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (302221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519 + ... + 934.

2302224 is an apocalyptic number.

It is an amenable number.

302224 is an abundant number, since it is smaller than the sum of its proper divisors (328812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302224 is a wasteful number, since it uses less digits than its factorization.

302224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1468 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 302224 is about 549.7490336508. The cubic root of 302224 is about 67.1083122218.

Adding to 302224 its reverse (422203), we get a palindrome (724427).

The spelling of 302224 in words is "three hundred two thousand, two hundred twenty-four", and thus it is an iban number.

Divisors: 1 2 4 8 13 16 26 52 104 208 1453 2906 5812 11624 18889 23248 37778 75556 151112 302224