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28930351 is a prime number
BaseRepresentation
bin110111001011…
…1000100101111
32000102210222111
41232113010233
524401232401
62512024451
7500622022
oct156270457
960383874
1028930351
111536a88a
129832127
135cbc168
143bb11b9
152816e51
hex1b9712f

28930351 has 2 divisors, whose sum is σ = 28930352. Its totient is φ = 28930350.

The previous prime is 28930327. The next prime is 28930361. The reversal of 28930351 is 15303982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28930351 - 29 = 28929839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28930301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14465175 + 14465176.

It is an arithmetic number, because the mean of its divisors is an integer number (14465176).

Almost surely, 228930351 is an apocalyptic number.

28930351 is a deficient number, since it is larger than the sum of its proper divisors (1).

28930351 is an equidigital number, since it uses as much as digits as its factorization.

28930351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 28930351 is about 5378.6941723805. The cubic root of 28930351 is about 306.9855270156.

The spelling of 28930351 in words is "twenty-eight million, nine hundred thirty thousand, three hundred fifty-one".