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28370701 is a prime number
BaseRepresentation
bin110110000111…
…0011100001101
31222101101021201
41230032130031
524230330301
62452025501
7463101262
oct154163415
958341251
1028370701
1115018367
129602291
135b544c8
143aa7269
152756201
hex1b0e70d

28370701 has 2 divisors, whose sum is σ = 28370702. Its totient is φ = 28370700.

The previous prime is 28370663. The next prime is 28370711. The reversal of 28370701 is 10707382.

It is a happy number.

It is the 2175-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27562500 + 808201 = 5250^2 + 899^2 .

It is a cyclic number.

It is not a de Polignac number, because 28370701 - 29 = 28370189 is a prime.

It is a Chen prime.

It is equal to p1763065 and since 28370701 and 1763065 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28370701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28370711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14185350 + 14185351.

It is an arithmetic number, because the mean of its divisors is an integer number (14185351).

Almost surely, 228370701 is an apocalyptic number.

It is an amenable number.

28370701 is a deficient number, since it is larger than the sum of its proper divisors (1).

28370701 is an equidigital number, since it uses as much as digits as its factorization.

28370701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 28370701 is about 5326.4153987461. The cubic root of 28370701 is about 304.9931056401.

The spelling of 28370701 in words is "twenty-eight million, three hundred seventy thousand, seven hundred one".