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10209253 = 55718329
BaseRepresentation
bin100110111100…
…011111100101
3201012200110111
4212330133211
510103144003
61002453021
7152530405
oct46743745
921180414
1010209253
1158433aa
123504171
132165ba2
1414da805
15d69e6d
hex9bc7e5

10209253 has 4 divisors (see below), whose sum is σ = 10228140. Its totient is φ = 10190368.

The previous prime is 10209233. The next prime is 10209281. The reversal of 10209253 is 35290201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2712609 + 7496644 = 1647^2 + 2738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10209253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10209203) 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, 8608 + ... + 9721.

It is an arithmetic number, because the mean of its divisors is an integer number (2557035).

Almost surely, 210209253 is an apocalyptic number.

It is an amenable number.

10209253 is a deficient number, since it is larger than the sum of its proper divisors (18887).

10209253 is an equidigital number, since it uses as much as digits as its factorization.

10209253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18886.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 10209253 is about 3195.1921694947. The cubic root of 10209253 is about 216.9358471619.

Adding to 10209253 its reverse (35290201), we get a palindrome (45499454).

The spelling of 10209253 in words is "ten million, two hundred nine thousand, two hundred fifty-three".

Divisors: 1 557 18329 10209253