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80264166541 = 136174166657
BaseRepresentation
bin100101011000000011…
…1011111110010001101
321200011202012010100221
41022300013133302031
52303340111312131
6100512311351341
75541010105306
oct1126007376215
9250152163327
1080264166541
1131049036339
1213680382551
137751a97690
143c55ca17ad
15214b7a0411
hex12b01dfc8d

80264166541 has 4 divisors (see below), whose sum is σ = 86438333212. Its totient is φ = 74089999872.

The previous prime is 80264166511. The next prime is 80264166551. The reversal of 80264166541 is 14566146208.

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 23338978441 + 56925188100 = 152771^2 + 238590^2 .

It is a cyclic number.

It is not a de Polignac number, because 80264166541 - 231 = 78116682893 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 (80264166511) 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 3 ways as a sum of consecutive naturals, for example, 3087083316 + ... + 3087083341.

It is an arithmetic number, because the mean of its divisors is an integer number (21609583303).

Almost surely, 280264166541 is an apocalyptic number.

It is an amenable number.

80264166541 is a deficient number, since it is larger than the sum of its proper divisors (6174166671).

80264166541 is a wasteful number, since it uses less digits than its factorization.

80264166541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174166670.

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 80264166541 in words is "eighty billion, two hundred sixty-four million, one hundred sixty-six thousand, five hundred forty-one".

Divisors: 1 13 6174166657 80264166541