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131450730305 = 561795455519
BaseRepresentation
bin111101001101100010…
…0101111011101000001
3110120022000201222110212
41322123010233131001
54123202341332210
6140215421203505
712332320525526
oct1723304573501
9416260658425
10131450730305
11508255682a4
1221586700595
13c51b605c2b
14651002514d
1536453c9805
hex1e9b12f741

131450730305 has 16 divisors (see below), whose sum is σ = 162356275200. Its totient is φ = 102127296960.

The previous prime is 131450730277. The next prime is 131450730311. The reversal of 131450730305 is 503037054131.

It is not a de Polignac number, because 131450730305 - 28 = 131450730049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2703665 + ... + 2751854.

It is an arithmetic number, because the mean of its divisors is an integer number (10147267200).

Almost surely, 2131450730305 is an apocalyptic number.

It is an amenable number.

131450730305 is a deficient number, since it is larger than the sum of its proper divisors (30905544895).

131450730305 is an equidigital number, since it uses as much as digits as its factorization.

131450730305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5455664.

The product of its (nonzero) digits is 18900, while the sum is 32.

Adding to 131450730305 its reverse (503037054131), we get a palindrome (634487784436).

The spelling of 131450730305 in words is "one hundred thirty-one billion, four hundred fifty million, seven hundred thirty thousand, three hundred five".

Divisors: 1 5 61 79 305 395 4819 24095 5455519 27277595 332786659 430986001 1663933295 2154930005 26290146061 131450730305