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10226749 = 13786673
BaseRepresentation
bin100111000000…
…110000111101
3201020120110111
4213000300331
510104223444
61003110021
7152632411
oct47006075
921216414
1010226749
115855565
123512311
132170b40
141502d41
15d70234
hex9c0c3d

10226749 has 4 divisors (see below), whose sum is σ = 11013436. Its totient is φ = 9440064.

The previous prime is 10226729. The next prime is 10226759. The reversal of 10226749 is 94762201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94762201 = 591606139.

It can be written as a sum of positive squares in 2 ways, for example, as 2839225 + 7387524 = 1685^2 + 2718^2 .

It is a cyclic number.

It is not a de Polignac number, because 10226749 - 213 = 10218557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10226749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10226719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393324 + ... + 393349.

It is an arithmetic number, because the mean of its divisors is an integer number (2753359).

Almost surely, 210226749 is an apocalyptic number.

It is an amenable number.

10226749 is a deficient number, since it is larger than the sum of its proper divisors (786687).

10226749 is an equidigital number, since it uses as much as digits as its factorization.

10226749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786686.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 10226749 is about 3197.9288609974. The cubic root of 10226749 is about 217.0597002806.

The spelling of 10226749 in words is "ten million, two hundred twenty-six thousand, seven hundred forty-nine".

Divisors: 1 13 786673 10226749