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80319071 = 713078779
BaseRepresentation
bin1001100100110…
…01001001011111
312121010122001102
410302121021133
5131030202241
611545303315
71663462250
oct462311137
9177118042
1080319071
11413799a8
1222a94b3b
13138426a1
14a94ab27
1570b839b
hex4c9925f

80319071 has 8 divisors (see below), whose sum is σ = 91873920. Its totient is φ = 68784408.

The previous prime is 80319037. The next prime is 80319089. The reversal of 80319071 is 17091308.

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

It is a de Polignac number, because none of the positive numbers 2k-80319071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80313071) 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, 4760 + ... + 13538.

It is an arithmetic number, because the mean of its divisors is an integer number (11484240).

Almost surely, 280319071 is an apocalyptic number.

80319071 is a deficient number, since it is larger than the sum of its proper divisors (11554849).

80319071 is a wasteful number, since it uses less digits than its factorization.

80319071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10093.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 80319071 is about 8962.0907716894. The cubic root of 80319071 is about 431.4590261352.

The spelling of 80319071 in words is "eighty million, three hundred nineteen thousand, seventy-one".

Divisors: 1 7 1307 8779 9149 61453 11474153 80319071