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28282601 is a prime number
BaseRepresentation
bin110101111100…
…0111011101001
31222012220102202
41223320323221
524220020401
62450105545
7462253364
oct153707351
958186382
1028282601
1114a68156
12957b2b5
135b23389
143a830db
15273a06b
hex1af8ee9

28282601 has 2 divisors, whose sum is σ = 28282602. Its totient is φ = 28282600.

The previous prime is 28282591. The next prime is 28282603. The reversal of 28282601 is 10628282.

28282601 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27825625 + 456976 = 5275^2 + 676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28282601 is a prime.

Together with 28282603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28282603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14141300 + 14141301.

It is an arithmetic number, because the mean of its divisors is an integer number (14141301).

Almost surely, 228282601 is an apocalyptic number.

It is an amenable number.

28282601 is a deficient number, since it is larger than the sum of its proper divisors (1).

28282601 is an equidigital number, since it uses as much as digits as its factorization.

28282601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28282601 is about 5318.1388661824. The cubic root of 28282601 is about 304.6770782725.

The spelling of 28282601 in words is "twenty-eight million, two hundred eighty-two thousand, six hundred one".