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28310141 is a prime number
BaseRepresentation
bin110101111111…
…1101001111101
31222021022012202
41223333221331
524221411031
62450441245
7462426566
oct153775175
958238182
1028310141
1114a86912
129593225
135b32a82
143a8d16d
1527432cb
hex1affa7d

28310141 has 2 divisors, whose sum is σ = 28310142. Its totient is φ = 28310140.

The previous prime is 28310137. The next prime is 28310153. The reversal of 28310141 is 14101382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 326041 = 5290^2 + 571^2 .

It is a cyclic number.

It is not a de Polignac number, because 28310141 - 22 = 28310137 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28310111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14155070 + 14155071.

It is an arithmetic number, because the mean of its divisors is an integer number (14155071).

Almost surely, 228310141 is an apocalyptic number.

It is an amenable number.

28310141 is a deficient number, since it is larger than the sum of its proper divisors (1).

28310141 is an equidigital number, since it uses as much as digits as its factorization.

28310141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 28310141 is about 5320.7274878535. The cubic root of 28310141 is about 304.7759386368.

The spelling of 28310141 in words is "twenty-eight million, three hundred ten thousand, one hundred forty-one".