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80329693 = 701114593
BaseRepresentation
bin1001100100110…
…11101111011101
312121011011121211
410302123233131
5131031022233
611545424421
71663535233
oct462335735
9177134554
1080329693
1141386984
1222a9b111
1313847482
14a950953
1570bb5cd
hex4c9bbdd

80329693 has 4 divisors (see below), whose sum is σ = 80444988. Its totient is φ = 80214400.

The previous prime is 80329673. The next prime is 80329699. The reversal of 80329693 is 39692308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73994404 + 6335289 = 8602^2 + 2517^2 .

It is a cyclic number.

It is not a de Polignac number, because 80329693 - 217 = 80198621 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 (80329699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56596 + ... + 57997.

It is an arithmetic number, because the mean of its divisors is an integer number (20111247).

Almost surely, 280329693 is an apocalyptic number.

It is an amenable number.

80329693 is a deficient number, since it is larger than the sum of its proper divisors (115295).

80329693 is a wasteful number, since it uses less digits than its factorization.

80329693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115294.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 80329693 is about 8962.6833593517. The cubic root of 80329693 is about 431.4780450959.

The spelling of 80329693 in words is "eighty million, three hundred twenty-nine thousand, six hundred ninety-three".

Divisors: 1 701 114593 80329693