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131563420463 = 6431913106957
BaseRepresentation
bin111101010000111001…
…0100111101100101111
3110120120212210020022102
41322201302213230233
54123420213423323
6140234524405315
712335156423336
oct1724162475457
9416525706272
10131563420463
1150883137062
12215b83a683b
13c538a708b7
146520d9ad1d
153650239328
hex1ea1ca7b2f

131563420463 has 8 divisors (see below), whose sum is σ = 131838142128. Its totient is φ = 131288917824.

The previous prime is 131563420453. The next prime is 131563420481. The reversal of 131563420463 is 364024365131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131563420463 - 222 = 131559226159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131563420453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176581 + ... + 1283537.

It is an arithmetic number, because the mean of its divisors is an integer number (16479767766).

Almost surely, 2131563420463 is an apocalyptic number.

131563420463 is a deficient number, since it is larger than the sum of its proper divisors (274721665).

131563420463 is a wasteful number, since it uses less digits than its factorization.

131563420463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109513.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 131563420463 its reverse (364024365131), we get a palindrome (495587785594).

The spelling of 131563420463 in words is "one hundred thirty-one billion, five hundred sixty-three million, four hundred twenty thousand, four hundred sixty-three".

Divisors: 1 643 1913 106957 1230059 68773351 204608741 131563420463