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130434 = 2321739
BaseRepresentation
bin11111110110000010
320121220220
4133312002
513133214
62443510
71052163
oct376602
9217826
10130434
1189aa7
1263596
13474a5
143576a
15289a9
hex1fd82

130434 has 8 divisors (see below), whose sum is σ = 260880. Its totient is φ = 43476.

The previous prime is 130423. The next prime is 130439. The reversal of 130434 is 434031.

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

130434 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (130439) 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, 10864 + ... + 10875.

It is an arithmetic number, because the mean of its divisors is an integer number (32610).

2130434 is an apocalyptic number.

130434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130434 is a wasteful number, since it uses less digits than its factorization.

130434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 130434 is about 361.1564757830. The cubic root of 130434 is about 50.7142808022.

Adding to 130434 its reverse (434031), we get a palindrome (564465).

The spelling of 130434 in words is "one hundred thirty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 21739 43478 65217 130434