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320130 = 23253557
BaseRepresentation
bin1001110001010000010
3121021010200
41032022002
540221010
610510030
72502216
oct1161202
9537120
10320130
111a9578
12135316
13b2935
1484946
1564cc0
hex4e282

320130 has 24 divisors (see below), whose sum is σ = 832572. Its totient is φ = 85344.

The previous prime is 320119. The next prime is 320141. The reversal of 320130 is 31023.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (320119) and next prime (320141).

It can be written as a sum of positive squares in 2 ways, for example, as 294849 + 25281 = 543^2 + 159^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1689 + ... + 1868.

2320130 is an apocalyptic number.

320130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320130 is an abundant number, since it is smaller than the sum of its proper divisors (512442).

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

320130 is a wasteful number, since it uses less digits than its factorization.

320130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 320130 is about 565.8003181335. The cubic root of 320130 is about 68.4082989828.

Adding to 320130 its reverse (31023), we get a palindrome (351153).

The spelling of 320130 in words is "three hundred twenty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 3557 7114 10671 17785 21342 32013 35570 53355 64026 106710 160065 320130