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131405353331551 = 1340012526394427
BaseRepresentation
bin11101111000001100110001…
…011010000010101101011111
3122020021020012000020111120121
4131320030301122002231133
5114210421130423102201
61143250441433055411
736451503104010235
oct3570146132025537
9566236160214517
10131405353331551
1138962774252772
12128a32a2b57567
13584261929c360
1424640a5762955
15102d24c6a59a1
hex778331682b5f

131405353331551 has 8 divisors (see below), whose sum is σ = 141548827011984. Its totient is φ = 121266932448000.

The previous prime is 131405353331459. The next prime is 131405353331579. The reversal of 131405353331551 is 155133353504131.

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 131405353331551 - 29 = 131405353331039 is a prime.

It is a super-3 number, since 3×1314053533315513 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131405353331498 and 131405353331507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131405353331591) 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, 1263145201 + ... + 1263249226.

It is an arithmetic number, because the mean of its divisors is an integer number (17693603376498).

Almost surely, 2131405353331551 is an apocalyptic number.

131405353331551 is a deficient number, since it is larger than the sum of its proper divisors (10143473680433).

131405353331551 is a wasteful number, since it uses less digits than its factorization.

131405353331551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526398441.

The product of its (nonzero) digits is 607500, while the sum is 43.

The spelling of 131405353331551 in words is "one hundred thirty-one trillion, four hundred five billion, three hundred fifty-three million, three hundred thirty-one thousand, five hundred fifty-one".

Divisors: 1 13 4001 52013 2526394427 32843127551 10108104102427 131405353331551