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80250758765 = 5116171381609
BaseRepresentation
bin100101010111101010…
…0010110011001101101
321200010210221221100122
41022233110112121231
52303323143240030
6100511112134325
75540455123502
oct1125724263155
9250123857318
1080250758765
1131041508931
12136779973a5
13774c081998
143c541b14a9
15214a5028e5
hex12af51666d

80250758765 has 8 divisors (see below), whose sum is σ = 96309269880. Its totient is φ = 64195034112.

The previous prime is 80250758759. The next prime is 80250758779. The reversal of 80250758765 is 56785705208.

It can be written as a sum of positive squares in 4 ways, for example, as 7617274729 + 72633484036 = 87277^2 + 269506^2 .

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 80250758765 - 26 = 80250758701 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632720 + ... + 748889.

It is an arithmetic number, because the mean of its divisors is an integer number (12038658735).

Almost surely, 280250758765 is an apocalyptic number.

It is an amenable number.

80250758765 is a deficient number, since it is larger than the sum of its proper divisors (16058511115).

80250758765 is a wasteful number, since it uses less digits than its factorization.

80250758765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393231.

The product of its (nonzero) digits is 4704000, while the sum is 53.

The spelling of 80250758765 in words is "eighty billion, two hundred fifty million, seven hundred fifty-eight thousand, seven hundred sixty-five".

Divisors: 1 5 11617 58085 1381609 6908045 16050151753 80250758765