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10248209 = 47218047
BaseRepresentation
bin100111000110…
…000000010001
3201021122220022
4213012000101
510110420314
61003353225
7153052106
oct47060021
921248808
1010248209
11586a6a4
123522815
13217a83a
14150aaad
15d7678e
hex9c6011

10248209 has 4 divisors (see below), whose sum is σ = 10466304. Its totient is φ = 10030116.

The previous prime is 10248181. The next prime is 10248257. The reversal of 10248209 is 90284201.

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 10248209 - 216 = 10182673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10248509) 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, 108977 + ... + 109070.

It is an arithmetic number, because the mean of its divisors is an integer number (2616576).

Almost surely, 210248209 is an apocalyptic number.

It is an amenable number.

10248209 is a deficient number, since it is larger than the sum of its proper divisors (218095).

10248209 is an equidigital number, since it uses as much as digits as its factorization.

10248209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218094.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 10248209 is about 3201.2823992894. The cubic root of 10248209 is about 217.2114215737.

The spelling of 10248209 in words is "ten million, two hundred forty-eight thousand, two hundred nine".

Divisors: 1 47 218047 10248209