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130105834 = 265052917
BaseRepresentation
bin1111100000101…
…00000111101010
3100001211001122121
413300110013222
5231301341314
620524341454
73136611205
oct760240752
9301731577
10130105834
1167494491
12376a488a
1320c54a01
14133ca93c
15b64ed24
hex7c141ea

130105834 has 4 divisors (see below), whose sum is σ = 195158754. Its totient is φ = 65052916.

The previous prime is 130105817. The next prime is 130105841. The reversal of 130105834 is 438501031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438501031 = 953460127.

It can be written as a sum of positive squares in only one way, i.e., 82537225 + 47568609 = 9085^2 + 6897^2 .

It is a junction number, because it is equal to n+sod(n) for n = 130105799 and 130105808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32526457 + ... + 32526460.

Almost surely, 2130105834 is an apocalyptic number.

130105834 is a deficient number, since it is larger than the sum of its proper divisors (65052920).

130105834 is an equidigital number, since it uses as much as digits as its factorization.

130105834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65052919.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 130105834 is about 11406.3944347020. The cubic root of 130105834 is about 506.7171347658.

Adding to 130105834 its reverse (438501031), we get a palindrome (568606865).

The spelling of 130105834 in words is "one hundred thirty million, one hundred five thousand, eight hundred thirty-four".

Divisors: 1 2 65052917 130105834