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131503103441 = 1761126811093
BaseRepresentation
bin111101001111000110…
…0100001110111010001
3110120102200021210220122
41322132030201313101
54123304243302231
6140224531520025
712333524636063
oct1723614416721
9416380253818
10131503103441
1150852089a86
12215a0159015
13c529412558
146516d79733
153649cc277b
hex1e9e321dd1

131503103441 has 8 divisors (see below), whose sum is σ = 141521180904. Its totient is φ = 121738648320.

The previous prime is 131503103419. The next prime is 131503103467. The reversal of 131503103441 is 144301305131.

It can be written as a sum of positive squares in 4 ways, for example, as 19063601041 + 112439502400 = 138071^2 + 335320^2 .

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

It is not a de Polignac number, because 131503103441 - 234 = 114323234257 is a prime.

It is a super-2 number, since 2×1315031034412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131503103441.

It is not an unprimeable number, because it can be changed into a prime (131503103341) 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, 63404510 + ... + 63406583.

It is an arithmetic number, because the mean of its divisors is an integer number (17690147613).

Almost surely, 2131503103441 is an apocalyptic number.

It is an amenable number.

131503103441 is a deficient number, since it is larger than the sum of its proper divisors (10018077463).

131503103441 is a wasteful number, since it uses less digits than its factorization.

131503103441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126811171.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 131503103441 its reverse (144301305131), we get a palindrome (275804408572).

The spelling of 131503103441 in words is "one hundred thirty-one billion, five hundred three million, one hundred three thousand, four hundred forty-one".

Divisors: 1 17 61 1037 126811093 2155788581 7735476673 131503103441