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80347072593 = 326782357531
BaseRepresentation
bin100101011010100001…
…1110000100001010001
321200101112012012002110
41022311003300201101
52304022322310333
6100524432335533
75543034564024
oct1126503604121
9250345165073
1080347072593
1131090911937
12136a40a45a9
137766004708
143c62cc31bb
152153bca063
hex12b50f0851

80347072593 has 4 divisors (see below), whose sum is σ = 107129430128. Its totient is φ = 53564715060.

The previous prime is 80347072583. The next prime is 80347072657. The reversal of 80347072593 is 39527074308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80347072593 - 212 = 80347068497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80347072513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13391178763 + ... + 13391178768.

It is an arithmetic number, because the mean of its divisors is an integer number (26782357532).

Almost surely, 280347072593 is an apocalyptic number.

It is an amenable number.

80347072593 is a deficient number, since it is larger than the sum of its proper divisors (26782357535).

80347072593 is a wasteful number, since it uses less digits than its factorization.

80347072593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26782357534.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 80347072593 in words is "eighty billion, three hundred forty-seven million, seventy-two thousand, five hundred ninety-three".

Divisors: 1 3 26782357531 80347072593