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80604457 is a prime number
BaseRepresentation
bin1001100110111…
…10110100101001
312121200010112021
410303132310221
5131113320312
611555344441
71666061263
oct463366451
9177603467
1080604457
114155435a
1222bb2121
131391255b
14a9c2b33
157122c07
hex4cded29

80604457 has 2 divisors, whose sum is σ = 80604458. Its totient is φ = 80604456.

The previous prime is 80604439. The next prime is 80604473. The reversal of 80604457 is 75440608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75272976 + 5331481 = 8676^2 + 2309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80604457 is a prime.

It is not a weakly prime, because it can be changed into another prime (83604457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40302228 + 40302229.

It is an arithmetic number, because the mean of its divisors is an integer number (40302229).

Almost surely, 280604457 is an apocalyptic number.

It is an amenable number.

80604457 is a deficient number, since it is larger than the sum of its proper divisors (1).

80604457 is an equidigital number, since it uses as much as digits as its factorization.

80604457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 80604457 is about 8977.9984963242. The cubic root of 80604457 is about 431.9694354948.

The spelling of 80604457 in words is "eighty million, six hundred four thousand, four hundred fifty-seven".