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80243770485 = 355349584699
BaseRepresentation
bin100101010111011100…
…1101100010001110101
321200010022210220020110
41022232321230101311
52303314401123420
6100510302253233
75540341536504
oct1125671542165
9250108726213
1080243770485
113103857549a
1213675587219
13774a7a5bc8
143c532b283b
152149ac1ee0
hex12aee6c475

80243770485 has 8 divisors (see below), whose sum is σ = 128390032800. Its totient is φ = 42796677584.

The previous prime is 80243770483. The next prime is 80243770487. The reversal of 80243770485 is 58407734208.

It is an interprime number because it is at equal distance from previous prime (80243770483) and next prime (80243770487).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80243770485 - 21 = 80243770483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80243770483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2674792335 + ... + 2674792364.

It is an arithmetic number, because the mean of its divisors is an integer number (16048754100).

Almost surely, 280243770485 is an apocalyptic number.

It is an amenable number.

80243770485 is a deficient number, since it is larger than the sum of its proper divisors (48146262315).

80243770485 is a wasteful number, since it uses less digits than its factorization.

80243770485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5349584707.

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 80243770485 in words is "eighty billion, two hundred forty-three million, seven hundred seventy thousand, four hundred eighty-five".

Divisors: 1 3 5 15 5349584699 16048754097 26747923495 80243770485