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80711479141 = 531522858097
BaseRepresentation
bin100101100101011000…
…1110110111101100101
321201022220212221220021
41023022301312331211
52310244114313031
6101024531035141
75555051152546
oct1131261667545
9251286787807
1080711479141
1131258586977
121378613bab1
1377c36630a7
143c994604cd
152175bac511
hex12cac76f65

80711479141 has 4 divisors (see below), whose sum is σ = 82234337292. Its totient is φ = 79188620992.

The previous prime is 80711479129. The next prime is 80711479171. The reversal of 80711479141 is 14197411708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66280502500 + 14430976641 = 257450^2 + 120129^2 .

It is a cyclic number.

It is not a de Polignac number, because 80711479141 - 215 = 80711446373 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 (80711479171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761428996 + ... + 761429101.

It is an arithmetic number, because the mean of its divisors is an integer number (20558584323).

Almost surely, 280711479141 is an apocalyptic number.

It is an amenable number.

80711479141 is a deficient number, since it is larger than the sum of its proper divisors (1522858151).

80711479141 is a wasteful number, since it uses less digits than its factorization.

80711479141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522858150.

The product of its (nonzero) digits is 56448, while the sum is 43.

The spelling of 80711479141 in words is "eighty billion, seven hundred eleven million, four hundred seventy-nine thousand, one hundred forty-one".

Divisors: 1 53 1522858097 80711479141