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80717349 = 3253910597
BaseRepresentation
bin1001100111110…
…10011000100101
312121212212101110
410303322120211
5131130423344
612002015233
72000041356
oct463723045
9177785343
1080717349
1141621159
1223047519
1313951a5b
14aa11d2d
1571463b9
hex4cfa625

80717349 has 8 divisors (see below), whose sum is σ = 107675680. Its totient is φ = 53785296.

The previous prime is 80717317. The next prime is 80717389. The reversal of 80717349 is 94371708.

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

It is not a de Polignac number, because 80717349 - 25 = 80717317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80717389) 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, 2319 + ... + 12915.

It is an arithmetic number, because the mean of its divisors is an integer number (13459460).

Almost surely, 280717349 is an apocalyptic number.

It is an amenable number.

80717349 is a deficient number, since it is larger than the sum of its proper divisors (26958331).

80717349 is a wasteful number, since it uses less digits than its factorization.

80717349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13139.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 80717349 is about 8984.2834438813. The cubic root of 80717349 is about 432.1710088997.

The spelling of 80717349 in words is "eighty million, seven hundred seventeen thousand, three hundred forty-nine".

Divisors: 1 3 2539 7617 10597 31791 26905783 80717349