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80630344 = 2359170827
BaseRepresentation
bin1001100111001…
…01001001001000
312121201110001001
410303211021020
5131120132334
612000104344
71666226614
oct463451110
9177643031
1080630344
1141571853
12230050b4
1313921282
14a9cc344
15712a714
hex4ce5248

80630344 has 16 divisors (see below), whose sum is σ = 153745200. Its totient is φ = 39631632.

The previous prime is 80630317. The next prime is 80630383. The reversal of 80630344 is 44303608.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 84942 + ... + 85885.

It is an arithmetic number, because the mean of its divisors is an integer number (9609075).

Almost surely, 280630344 is an apocalyptic number.

It is an amenable number.

80630344 is a deficient number, since it is larger than the sum of its proper divisors (73114856).

80630344 is a wasteful number, since it uses less digits than its factorization.

80630344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170892 (or 170888 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 80630344 is about 8979.4400716303. The cubic root of 80630344 is about 432.0156744427.

The spelling of 80630344 in words is "eighty million, six hundred thirty thousand, three hundred forty-four".

Divisors: 1 2 4 8 59 118 236 472 170827 341654 683308 1366616 10078793 20157586 40315172 80630344