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302420 = 22515121
BaseRepresentation
bin1001001110101010100
3120100211202
41021311110
534134140
610252032
72366456
oct1116524
9510752
10302420
11197238
12127018
13a7861
147c2d6
155e915
hex49d54

302420 has 12 divisors (see below), whose sum is σ = 635124. Its totient is φ = 120960.

The previous prime is 302417. The next prime is 302429. The reversal of 302420 is 24203.

302420 is digitally balanced in base 3, 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 2 ways, for example, as 85264 + 217156 = 292^2 + 466^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7541 + ... + 7580.

It is an arithmetic number, because the mean of its divisors is an integer number (52927).

2302420 is an apocalyptic number.

It is an amenable number.

302420 is an abundant number, since it is smaller than the sum of its proper divisors (332704).

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

302420 is a wasteful number, since it uses less digits than its factorization.

302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15130 (or 15128 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 302420 is about 549.9272679182. The cubic root of 302420 is about 67.1228162395.

Adding to 302420 its reverse (24203), we get a palindrome (326623).

The spelling of 302420 in words is "three hundred two thousand, four hundred twenty", and thus it is an iban number.

Divisors: 1 2 4 5 10 20 15121 30242 60484 75605 151210 302420