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80261299573 = 7137109124067
BaseRepresentation
bin100101010111111110…
…0100011110101110101
321200011112210110121221
41022233330203311311
52303333343041243
6100512130110341
75540643534640
oct1125774436565
9250145713557
1080261299573
1131047458344
121367b41b3b1
137751302750
143c55756a57
15214b3d5bed
hex12aff23d75

80261299573 has 16 divisors (see below), whose sum is σ = 98797829760. Its totient is φ = 63494001216.

The previous prime is 80261299553. The next prime is 80261299621. The reversal of 80261299573 is 37599216208.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80261299573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80261299573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80261299523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584886 + ... + 708952.

It is an arithmetic number, because the mean of its divisors is an integer number (6174864360).

Almost surely, 280261299573 is an apocalyptic number.

It is an amenable number.

80261299573 is a deficient number, since it is larger than the sum of its proper divisors (18536530187).

80261299573 is a wasteful number, since it uses less digits than its factorization.

80261299573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131196.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 80261299573 in words is "eighty billion, two hundred sixty-one million, two hundred ninety-nine thousand, five hundred seventy-three".

Divisors: 1 7 13 91 7109 49763 92417 124067 646919 868469 1612871 11290097 881992303 6173946121 11465899939 80261299573