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130827 = 343609
BaseRepresentation
bin11111111100001011
320122110110
4133330023
513141302
62445403
71053264
oct377413
9218413
10130827
118a324
1263863
1347718
143596b
1528b6c
hex1ff0b

130827 has 4 divisors (see below), whose sum is σ = 174440. Its totient is φ = 87216.

The previous prime is 130817. The next prime is 130829. The reversal of 130827 is 728031.

Adding to 130827 its reverse (728031), we get a palindrome (858858).

130827 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728031 = 3242677.

It is not a de Polignac number, because 130827 - 24 = 130811 is a prime.

It is a D-number.

It is a Duffinian number.

130827 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (130829) 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, 21802 + ... + 21807.

It is an arithmetic number, because the mean of its divisors is an integer number (43610).

2130827 is an apocalyptic number.

130827 is a deficient number, since it is larger than the sum of its proper divisors (43613).

130827 is an equidigital number, since it uses as much as digits as its factorization.

130827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43612.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 130827 is about 361.7001520597. The cubic root of 130827 is about 50.7651640806.

The spelling of 130827 in words is "one hundred thirty thousand, eight hundred twenty-seven".

Divisors: 1 3 43609 130827