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131144204241 = 32191021751151
BaseRepresentation
bin111101000100011001…
…1011011111111010001
3110112111122221211202200
41322020303123333101
54122040404013431
6140125151233413
712321606225531
oct1721063337721
9415448854680
10131144204241
1150688536776
12214bbb18869
13c49cc6186b
1464c14334c1
15362852bee6
hex1e88cdbfd1

131144204241 has 24 divisors (see below), whose sum is σ = 199596109440. Its totient is φ = 82746684000.

The previous prime is 131144204221. The next prime is 131144204309. The reversal of 131144204241 is 142402441131.

It is not a de Polignac number, because 131144204241 - 25 = 131144204209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131144204221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200985 + ... + 550166.

It is an arithmetic number, because the mean of its divisors is an integer number (8316504560).

Almost surely, 2131144204241 is an apocalyptic number.

It is an amenable number.

131144204241 is a deficient number, since it is larger than the sum of its proper divisors (68451905199).

131144204241 is a wasteful number, since it uses less digits than its factorization.

131144204241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752197 (or 752194 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 131144204241 its reverse (142402441131), we get a palindrome (273546645372).

The spelling of 131144204241 in words is "one hundred thirty-one billion, one hundred forty-four million, two hundred four thousand, two hundred forty-one".

Divisors: 1 3 9 19 57 171 1021 3063 9189 19399 58197 174591 751151 2253453 6760359 14271869 42815607 128446821 766925171 2300775513 6902326539 14571578249 43714734747 131144204241