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80909327 = 479168913
BaseRepresentation
bin1001101001010…
…01010000001111
312122020121201202
410310221100033
5131203044302
612010100115
72001501152
oct464512017
9178217652
1080909327
1141742414
122311a63b
13139bb255
14aa61c99
157183202
hex4d2940f

80909327 has 4 divisors (see below), whose sum is σ = 81078720. Its totient is φ = 80739936.

The previous prime is 80909317. The next prime is 80909371. The reversal of 80909327 is 72390908.

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

It is a cyclic number.

It is not a de Polignac number, because 80909327 - 28 = 80909071 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 (80909317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83978 + ... + 84935.

It is an arithmetic number, because the mean of its divisors is an integer number (20269680).

Almost surely, 280909327 is an apocalyptic number.

80909327 is a deficient number, since it is larger than the sum of its proper divisors (169393).

80909327 is a wasteful number, since it uses less digits than its factorization.

80909327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169392.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 80909327 is about 8994.9612005834. The cubic root of 80909327 is about 432.5133625461.

The spelling of 80909327 in words is "eighty million, nine hundred nine thousand, three hundred twenty-seven".

Divisors: 1 479 168913 80909327