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131041321242 = 231315733106783
BaseRepresentation
bin111101000001010101…
…0111110000100011010
3110112020111100211211020
41322002222332010122
54121333034234432
6140111034143310
712316216565226
oct1720252760432
9415214324736
10131041321242
11506354561a7
1221491581b36
13c48484ba50
1464b18d1786
15361e4a822c
hex1e82abe11a

131041321242 has 32 divisors (see below), whose sum is σ = 282263428608. Its totient is φ = 40317466176.

The previous prime is 131041321219. The next prime is 131041321253. The reversal of 131041321242 is 242123140131.

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, 1173783 + ... + 1280565.

It is an arithmetic number, because the mean of its divisors is an integer number (8820732144).

Almost surely, 2131041321242 is an apocalyptic number.

131041321242 is an abundant number, since it is smaller than the sum of its proper divisors (151222107366).

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

131041321242 is a wasteful number, since it uses less digits than its factorization.

131041321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122534.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 131041321242 its reverse (242123140131), we get a palindrome (373164461373).

The spelling of 131041321242 in words is "one hundred thirty-one billion, forty-one million, three hundred twenty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 15733 31466 47199 94398 106783 204529 213566 320349 409058 613587 640698 1227174 1388179 2776358 4164537 8329074 1680016939 3360033878 5040050817 10080101634 21840220207 43680440414 65520660621 131041321242