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80677009 = 750922643
BaseRepresentation
bin1001100111100…
…00100010010001
312121210211001101
410303300202101
5131123131014
612001104401
71666512640
oct463604221
9177724041
1080677009
11415a3916
1223028101
131393959a
14aa01357
157139474
hex4cf0891

80677009 has 8 divisors (see below), whose sum is σ = 92387520. Its totient is φ = 69012816.

The previous prime is 80677007. The next prime is 80677039. The reversal of 80677009 is 90077608.

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 80677009 - 21 = 80677007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80677007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7759 + ... + 14884.

It is an arithmetic number, because the mean of its divisors is an integer number (11548440).

Almost surely, 280677009 is an apocalyptic number.

It is an amenable number.

80677009 is a deficient number, since it is larger than the sum of its proper divisors (11710511).

80677009 is a wasteful number, since it uses less digits than its factorization.

80677009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23159.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 80677009 is about 8982.0381317383. The cubic root of 80677009 is about 432.0990017298.

It can be divided in two parts, 806 and 77009, that added together give a triangular number (77815 = T394).

The spelling of 80677009 in words is "eighty million, six hundred seventy-seven thousand, nine".

Divisors: 1 7 509 3563 22643 158501 11525287 80677009