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80458518321 = 3419397131687
BaseRepresentation
bin100101011101110110…
…0111000111100110001
321200200021220012220000
41022323230320330301
52304234340041241
6100543453140213
75545560056466
oct1127354707461
9250607805800
1080458518321
1131138810745
121371548a669
137783124b2c
143c73a1366d
15215d890eb6
hex12bbb38f31

80458518321 has 40 divisors (see below), whose sum is σ = 126836614080. Its totient is φ = 50687521632.

The previous prime is 80458518311. The next prime is 80458518331. The reversal of 80458518321 is 12381585408.

80458518321 is a `hidden beast` number, since 80 + 4 + 58 + 518 + 3 + 2 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (80458518311) and next prime (80458518331).

It is not a de Polignac number, because 80458518321 - 219 = 80457994033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80458518311) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 545140 + ... + 676826.

It is an arithmetic number, because the mean of its divisors is an integer number (3170915352).

Almost surely, 280458518321 is an apocalyptic number.

80458518321 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

80458518321 is a deficient number, since it is larger than the sum of its proper divisors (46378095759).

80458518321 is a wasteful number, since it uses less digits than its factorization.

80458518321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132115 (or 132106 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 80458518321 in words is "eighty billion, four hundred fifty-eight million, five hundred eighteen thousand, three hundred twenty-one".

Divisors: 1 3 9 19 27 57 81 171 397 513 1191 1539 3573 7543 10719 22629 32157 67887 131687 203661 395061 610983 1185183 2502053 3555549 7506159 10666647 22518477 52279739 67555431 156839217 202666293 470517651 993315041 1411552953 2979945123 4234658859 8939835369 26819506107 80458518321