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10289191 = 11935381
BaseRepresentation
bin100111010000…
…000000100111
3201100202010011
4213100000213
510113223231
61004311051
7153312433
oct47200047
921322104
1010289191
115898470
123542487
1321933a3
14151b9c3
15d839b1
hex9d0027

10289191 has 4 divisors (see below), whose sum is σ = 11224584. Its totient is φ = 9353800.

The previous prime is 10289183. The next prime is 10289207. The reversal of 10289191 is 19198201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10289191 - 23 = 10289183 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10289141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467680 + ... + 467701.

It is an arithmetic number, because the mean of its divisors is an integer number (2806146).

Almost surely, 210289191 is an apocalyptic number.

10289191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10289191 is a deficient number, since it is larger than the sum of its proper divisors (935393).

10289191 is an equidigital number, since it uses as much as digits as its factorization.

10289191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935392.

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 10289191 is about 3207.6768852239. The cubic root of 10289191 is about 217.5005751515.

The spelling of 10289191 in words is "ten million, two hundred eighty-nine thousand, one hundred ninety-one".

Divisors: 1 11 935381 10289191