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130465 = 597269
BaseRepresentation
bin11111110110100001
320121222001
4133312201
513133330
62444001
71052236
oct376641
9217861
10130465
118a025
1263601
13474ca
143578d
15289ca
hex1fda1

130465 has 8 divisors (see below), whose sum is σ = 158760. Its totient is φ = 102912.

The previous prime is 130457. The next prime is 130469. The reversal of 130465 is 564031.

It can be written as a sum of positive squares in 4 ways, for example, as 144 + 130321 = 12^2 + 361^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130465 - 23 = 130457 is a prime.

It is a super-2 number, since 2×1304652 = 34042232450, which contains 22 as substring.

130465 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351 + ... + 619.

It is an arithmetic number, because the mean of its divisors is an integer number (19845).

2130465 is an apocalyptic number.

It is an amenable number.

130465 is a deficient number, since it is larger than the sum of its proper divisors (28295).

130465 is an equidigital number, since it uses as much as digits as its factorization.

130465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 130465 is about 361.1993909186. The cubic root of 130465 is about 50.7182982061.

Adding to 130465 its reverse (564031), we get a palindrome (694496).

It can be divided in two parts, 1304 and 65, that added together give a square (1369 = 372).

The spelling of 130465 in words is "one hundred thirty thousand, four hundred sixty-five".

Divisors: 1 5 97 269 485 1345 26093 130465