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80775310753 = 82198386493
BaseRepresentation
bin100101100111010010…
…1010110110110100001
321201111100222221102001
41023032211112312201
52310411434421003
6101035131124001
75556454545544
oct1131645266641
9251440887361
1080775310753
1131290614575
12137a35a3601
137803952087
143ca3b1885b
15217b5ba61d
hex12ce956da1

80775310753 has 4 divisors (see below), whose sum is σ = 80873698068. Its totient is φ = 80676923440.

The previous prime is 80775310727. The next prime is 80775310769. The reversal of 80775310753 is 35701357708.

It is a happy number.

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 6786958689 + 73988352064 = 82383^2 + 272008^2 .

It is a cyclic number.

It is not a de Polignac number, because 80775310753 - 221 = 80773213601 is a prime.

It is a super-3 number, since 3×807753107533 (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80775319753) 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, 49192426 + ... + 49194067.

It is an arithmetic number, because the mean of its divisors is an integer number (20218424517).

Almost surely, 280775310753 is an apocalyptic number.

It is an amenable number.

80775310753 is a deficient number, since it is larger than the sum of its proper divisors (98387315).

80775310753 is an equidigital number, since it uses as much as digits as its factorization.

80775310753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98387314.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 80775310753 in words is "eighty billion, seven hundred seventy-five million, three hundred ten thousand, seven hundred fifty-three".

Divisors: 1 821 98386493 80775310753