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80579227193 = 257177072
BaseRepresentation
bin100101100001011100…
…1010110111000111001
321200222201000212022222
41023002321112320321
52310011240232233
6101003444253425
75551554062423
oct1130271267071
9250881025288
1080579227193
113119a967043
12137499a1275
1377a21395ba
143c85a75813
152169286898
hex12c2e56e39

80579227193 has 6 divisors (see below), whose sum is σ = 80897333706. Its totient is φ = 80261156352.

The previous prime is 80579227177. The next prime is 80579227199. The reversal of 80579227193 is 39172297508.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 80265689344 + 313537849 = 283312^2 + 17707^2 .

It is not a de Polignac number, because 80579227193 - 24 = 80579227177 is a prime.

It is a super-2 number, since 2×805792271932 (a number of 23 digits) contains 22 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 (80579227199) 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 5 ways as a sum of consecutive naturals, for example, 4541846 + ... + 4559552.

It is an arithmetic number, because the mean of its divisors is an integer number (13482888951).

Almost surely, 280579227193 is an apocalyptic number.

It is an amenable number.

80579227193 is a deficient number, since it is larger than the sum of its proper divisors (318106513).

80579227193 is an frugal number, since it uses more digits than its factorization.

80579227193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35671 (or 17964 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 80579227193 in words is "eighty billion, five hundred seventy-nine million, two hundred twenty-seven thousand, one hundred ninety-three".

Divisors: 1 257 17707 4550699 313537849 80579227193