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131442345453 = 3359479254791
BaseRepresentation
bin111101001101010010…
…0110000010111101101
3110120021102221222121210
41322122210300113231
54123143220023303
6140214521345033
712332156334066
oct1723244602755
9416242858553
10131442345453
1150820860671
1221583938179
13c51995b593
14650cc8156d
1536447c0203
hex1e9a9305ed

131442345453 has 16 divisors (see below), whose sum is σ = 176112230400. Its totient is φ = 87201367920.

The previous prime is 131442345413. The next prime is 131442345467. The reversal of 131442345453 is 354543244131.

It is not a de Polignac number, because 131442345453 - 221 = 131440248301 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131442345413) 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, 388488 + ... + 643278.

It is an arithmetic number, because the mean of its divisors is an integer number (11007014400).

Almost surely, 2131442345453 is an apocalyptic number.

It is an amenable number.

131442345453 is a deficient number, since it is larger than the sum of its proper divisors (44669884947).

131442345453 is a wasteful number, since it uses less digits than its factorization.

131442345453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255632.

The product of its digits is 345600, while the sum is 39.

Adding to 131442345453 its reverse (354543244131), we get a palindrome (485985589584).

The spelling of 131442345453 in words is "one hundred thirty-one billion, four hundred forty-two million, three hundred forty-five thousand, four hundred fifty-three".

Divisors: 1 3 359 479 1077 1437 171961 254791 515883 764373 91469969 122044889 274409907 366134667 43814115151 131442345453