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80081586133 = 5411177712569
BaseRepresentation
bin100101010010100111…
…1000000011111010101
321122201000122002010121
41022211033000133111
52303001341224013
6100442230151541
75533332152023
oct1124517003725
9248630562117
1080081586133
1130a64a70a3a
121362b1b25b1
137722ccc133
143c39935713
15213a73758d
hex12a53c07d5

80081586133 has 8 divisors (see below), whose sum is σ = 80242807320. Its totient is φ = 79920414720.

The previous prime is 80081586113. The next prime is 80081586181. The reversal of 80081586133 is 33168518008.

It can be written as a sum of positive squares in 4 ways, for example, as 40575253489 + 39506332644 = 201433^2 + 198762^2 .

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 80081586133 - 29 = 80081585621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80081586133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80081586103) 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, 6365073 + ... + 6377641.

It is an arithmetic number, because the mean of its divisors is an integer number (10030350915).

Almost surely, 280081586133 is an apocalyptic number.

It is an amenable number.

80081586133 is a deficient number, since it is larger than the sum of its proper divisors (161221187).

80081586133 is a wasteful number, since it uses less digits than its factorization.

80081586133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24887.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 80081586133 in words is "eighty billion, eighty-one million, five hundred eighty-six thousand, one hundred thirty-three".

Divisors: 1 541 11777 12569 6371357 6799829 148025113 80081586133