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10128187 is a prime number
BaseRepresentation
bin100110101000…
…101100111011
3201001120021001
4212220230323
510043100222
61001025431
7152042146
oct46505473
921046231
1010128187
115798503
123485277
132138014
1414b905d
15d50e27
hex9a8b3b

10128187 has 2 divisors, whose sum is σ = 10128188. Its totient is φ = 10128186.

The previous prime is 10128161. The next prime is 10128191. The reversal of 10128187 is 78182101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10128187 - 223 = 1739579 is a prime.

It is equal to p672562 and since 10128187 and 672562 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (10128127) 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, 5064093 + 5064094.

It is an arithmetic number, because the mean of its divisors is an integer number (5064094).

Almost surely, 210128187 is an apocalyptic number.

10128187 is a deficient number, since it is larger than the sum of its proper divisors (1).

10128187 is an equidigital number, since it uses as much as digits as its factorization.

10128187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 10128187 is about 3182.4812646738. The cubic root of 10128187 is about 216.3601316804.

The spelling of 10128187 in words is "ten million, one hundred twenty-eight thousand, one hundred eighty-seven".