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80830357647 = 3136473203359
BaseRepresentation
bin100101101000111011…
…1010110000010001111
321201122012120121112220
41023101313112002033
52311020032421042
6101044415030423
75561023463244
oct1132167260217
9251565517486
1080830357647
11313096a2076
12137b9b0b413
1378121866c0
143cab1675cb
1521813408ec
hex12d1dd608f

80830357647 has 16 divisors (see below), whose sum is σ = 116243527680. Its totient is φ = 49664862432.

The previous prime is 80830357639. The next prime is 80830357651. The reversal of 80830357647 is 74675303808.

It is not a de Polignac number, because 80830357647 - 23 = 80830357639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80830357647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80830357627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576447 + ... + 1626912.

It is an arithmetic number, because the mean of its divisors is an integer number (7265220480).

Almost surely, 280830357647 is an apocalyptic number.

80830357647 is a deficient number, since it is larger than the sum of its proper divisors (35413170033).

80830357647 is a wasteful number, since it uses less digits than its factorization.

80830357647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204022.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 80830357647 in words is "eighty billion, eight hundred thirty million, three hundred fifty-seven thousand, six hundred forty-seven".

Divisors: 1 3 13 39 647 1941 8411 25233 3203359 9610077 41643667 124931001 2072573273 6217719819 26943452549 80830357647