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130432105 = 526086421
BaseRepresentation
bin1111100011000…
…11110001101001
3100002102122012201
413301203301221
5231342311410
620535340201
73142440346
oct761436151
9302378181
10130432105
1167697631
1237821661
132103a37b
14134737cd
15b6b683a
hex7c63c69

130432105 has 4 divisors (see below), whose sum is σ = 156518532. Its totient is φ = 104345680.

The previous prime is 130432087. The next prime is 130432121. The reversal of 130432105 is 501234031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501234031 = 2811783751.

It can be written as a sum of positive squares in 2 ways, for example, as 65999376 + 64432729 = 8124^2 + 8027^2 .

It is not a de Polignac number, because 130432105 - 29 = 130431593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13043206 + ... + 13043215.

It is an arithmetic number, because the mean of its divisors is an integer number (39129633).

Almost surely, 2130432105 is an apocalyptic number.

It is an amenable number.

130432105 is a deficient number, since it is larger than the sum of its proper divisors (26086427).

130432105 is an equidigital number, since it uses as much as digits as its factorization.

130432105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26086426.

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

The square root of 130432105 is about 11420.6875887575. The cubic root of 130432105 is about 507.1403520153.

Adding to 130432105 its reverse (501234031), we get a palindrome (631666136).

The spelling of 130432105 in words is "one hundred thirty million, four hundred thirty-two thousand, one hundred five".

Divisors: 1 5 26086421 130432105