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131310444242 = 2314123673433
BaseRepresentation
bin111101001001010110…
…1100101111011010010
3110112221020202201011202
41322102231211323102
54122410433203432
6140153450311202
712325665234335
oct1722255457322
9415836681152
10131310444242
11507633602aa
1221547728502
13c4c8528623
1464d954861c
153637e18462
hex1e92b65ed2

131310444242 has 48 divisors (see below), whose sum is σ = 209028074496. Its totient is φ = 61800710400.

The previous prime is 131310444229. The next prime is 131310444253. The reversal of 131310444242 is 242444013131.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38247758 + ... + 38251190.

It is an arithmetic number, because the mean of its divisors is an integer number (4354751552).

Almost surely, 2131310444242 is an apocalyptic number.

131310444242 is a deficient number, since it is larger than the sum of its proper divisors (77717630254).

131310444242 is a wasteful number, since it uses less digits than its factorization.

131310444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 131310444242 its reverse (242444013131), we get a palindrome (373754457373).

The spelling of 131310444242 in words is "one hundred thirty-one billion, three hundred ten million, four hundred forty-four thousand, two hundred forty-two".

Divisors: 1 2 31 41 62 82 367 734 1271 1681 2542 3362 3433 6866 11377 15047 22754 30094 52111 104222 106423 140753 212846 281506 466457 616927 932914 1233854 1259911 2519822 4363343 5770873 8726686 11541746 19124737 38249474 39057241 51656351 78114482 103312702 178897063 357794126 1601346881 2117910391 3202693762 4235820782 65655222121 131310444242