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10440289 = 12782207
BaseRepresentation
bin100111110100…
…111001100001
3201122102101101
4213310321201
510133042124
61011434401
7154512106
oct47647141
921572341
1010440289
115990a42
1235b5a01
1322170b2
14155aaad
15db3644
hex9f4e61

10440289 has 4 divisors (see below), whose sum is σ = 10522624. Its totient is φ = 10357956.

The previous prime is 10440277. The next prime is 10440299. The reversal of 10440289 is 98204401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10440289 - 27 = 10440161 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (10440239) 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 in 3 ways as a sum of consecutive naturals, for example, 40977 + ... + 41230.

It is an arithmetic number, because the mean of its divisors is an integer number (2630656).

Almost surely, 210440289 is an apocalyptic number.

It is an amenable number.

10440289 is a deficient number, since it is larger than the sum of its proper divisors (82335).

10440289 is an equidigital number, since it uses as much as digits as its factorization.

10440289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82334.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 10440289 is about 3231.1436055985. The cubic root of 10440289 is about 218.5600796200.

The spelling of 10440289 in words is "ten million, four hundred forty thousand, two hundred eighty-nine".

Divisors: 1 127 82207 10440289