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10506245 = 52101249
BaseRepresentation
bin101000000101…
…000000000101
3201202202212012
4220011000011
510142144440
61013104005
7155205311
oct50050005
921682765
1010506245
115a26552
123628005
13223b119
141576b41
15dc7e65
hexa05005

10506245 has 4 divisors (see below), whose sum is σ = 12607500. Its totient is φ = 8404992.

The previous prime is 10506227. The next prime is 10506247. The reversal of 10506245 is 54260501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54260501 = 75172251.

It can be written as a sum of positive squares in 2 ways, for example, as 6964321 + 3541924 = 2639^2 + 1882^2 .

It is a cyclic number.

It is not a de Polignac number, because 10506245 - 214 = 10489861 is a prime.

It is a super-2 number, since 2×105062452 = 220762368000050, which contains 22 as substring.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 10506245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506247) 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, 1050620 + ... + 1050629.

It is an arithmetic number, because the mean of its divisors is an integer number (3151875).

Almost surely, 210506245 is an apocalyptic number.

It is an amenable number.

10506245 is a deficient number, since it is larger than the sum of its proper divisors (2101255).

10506245 is an equidigital number, since it uses as much as digits as its factorization.

10506245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101254.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 10506245 is about 3241.3338303853. Note that the first 3 decimals coincide. The cubic root of 10506245 is about 219.0193612429.

Adding to 10506245 its reverse (54260501), we get a palindrome (64766746).

The spelling of 10506245 in words is "ten million, five hundred six thousand, two hundred forty-five".

Divisors: 1 5 2101249 10506245