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131201130341442 = 2379887315953923
BaseRepresentation
bin11101110101001110100100…
…110001001010010001000010
3122012112201001100122200201010
4131311032210301022101002
5114144044403331411232
61143012544525421350
736430653214150560
oct3565164461122102
9565481040580633
10131201130341442
11388940a57425a7
121286b7a910a856
1358292a10b5085
142458250882a30
151027c986100cc
hex7753a4c4a442

131201130341442 has 32 divisors (see below), whose sum is σ = 299918630449152. Its totient is φ = 37482245674704.

The previous prime is 131201130341429. The next prime is 131201130341447. The reversal of 131201130341442 is 244143031102131.

It is not an unprimeable number, because it can be changed into a prime (131201130341447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157561708 + ... + 158392215.

It is an arithmetic number, because the mean of its divisors is an integer number (9372457201536).

Almost surely, 2131201130341442 is an apocalyptic number.

131201130341442 is an abundant number, since it is smaller than the sum of its proper divisors (168717500107710).

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

131201130341442 is a wasteful number, since it uses less digits than its factorization.

131201130341442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315963822.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131201130341442 its reverse (244143031102131), we get a palindrome (375344161443573).

The spelling of 131201130341442 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred thirty million, three hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 9887 19774 29661 59322 69209 138418 207627 415254 315953923 631907846 947861769 1895723538 2211677461 4423354922 6635032383 13270064766 3123836436701 6247672873402 9371509310103 18743018620206 21866855056907 43733710113814 65600565170721 131201130341442