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478001 is a prime number
BaseRepresentation
bin1110100101100110001
3220021200202
41310230301
5110244001
614124545
74030406
oct1645461
9807622
10478001
112a7147
121b0755
13139754
14c62ad
159696b
hex74b31

478001 has 2 divisors, whose sum is σ = 478002. Its totient is φ = 478000.

The previous prime is 477991. The next prime is 478039. The reversal of 478001 is 100874.

It is a happy number.

478001 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456976 + 21025 = 676^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 478001 - 210 = 476977 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (478801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239000 + 239001.

It is an arithmetic number, because the mean of its divisors is an integer number (239001).

2478001 is an apocalyptic number.

It is an amenable number.

478001 is a deficient number, since it is larger than the sum of its proper divisors (1).

478001 is an equidigital number, since it uses as much as digits as its factorization.

478001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 478001 is about 691.3761638934. The cubic root of 478001 is about 78.1885096375.

Adding to 478001 its reverse (100874), we get a palindrome (578875).

The spelling of 478001 in words is "four hundred seventy-eight thousand, one".