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131677243021471 = 7107175804062779
BaseRepresentation
bin11101111100001001111111…
…010010111001100010011111
3122021020012222110122211012011
4131330021333102321202133
5114224344443203141341
61144015405040452051
736510236556153040
oct3574117722714237
9567205873584164
10131677243021471
1138a58006959a44
1212927b2231a027
135862159399994
1424732d93dc8c7
1510353620adb81
hex77c27f4b989f

131677243021471 has 8 divisors (see below), whose sum is σ = 151894710241920. Its totient is φ = 111811383926808.

The previous prime is 131677243021417. The next prime is 131677243021589. The reversal of 131677243021471 is 174120342776131.

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 131677243021471 - 221 = 131677240924319 is a prime.

It is a super-3 number, since 3×1316772430214713 (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131677243024471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87902030641 + ... + 87902032138.

It is an arithmetic number, because the mean of its divisors is an integer number (18986838780240).

Almost surely, 2131677243021471 is an apocalyptic number.

131677243021471 is a deficient number, since it is larger than the sum of its proper divisors (20217467220449).

131677243021471 is a wasteful number, since it uses less digits than its factorization.

131677243021471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175804062893.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 131677243021471 in words is "one hundred thirty-one trillion, six hundred seventy-seven billion, two hundred forty-three million, twenty-one thousand, four hundred seventy-one".

Divisors: 1 7 107 749 175804062779 1230628439453 18811034717353 131677243021471