Search a number
-
+
131010343213421 = 71910331583602383
BaseRepresentation
bin11101110010011100111000…
…111110000001100101101101
3122011212110121002000101200102
4131302130320332001211231
5114132433140330312141
61142345153143240445
736411120302262620
oct3562347076014555
9564773532011612
10131010343213421
11388201a1347491
121283a822a49125
1358142b7689349
14244cd12189db7
151022d2ddb599b
hex772738f8196d

131010343213421 has 32 divisors (see below), whose sum is σ = 157858919792640. Its totient is φ = 106214037519744.

The previous prime is 131010343213391. The next prime is 131010343213441. The reversal of 131010343213421 is 124312343010131.

It is not a de Polignac number, because 131010343213421 - 214 = 131010343197037 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 (131010343213441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217185596 + ... + 217787978.

It is an arithmetic number, because the mean of its divisors is an integer number (4933091243520).

Almost surely, 2131010343213421 is an apocalyptic number.

It is an amenable number.

131010343213421 is a deficient number, since it is larger than the sum of its proper divisors (26848576579219).

131010343213421 is a wasteful number, since it uses less digits than its factorization.

131010343213421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605025.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 131010343213421 its reverse (124312343010131), we get a palindrome (255322686223552).

The spelling of 131010343213421 in words is "one hundred thirty-one trillion, ten billion, three hundred forty-three million, two hundred thirteen thousand, four hundred twenty-one".

Divisors: 1 7 19 133 1033 1583 7231 11081 19627 30077 137389 210539 602383 1635239 4216681 11445277 11446673 31069541 80116939 217486787 622261639 953572289 4355831473 6675006023 11822971141 18117873491 82760797987 126825114437 985040174537 6895281221759 18715763316203 131010343213421