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11213203 = 61183823
BaseRepresentation
bin101010110001…
…100110010011
3210002200121211
4222301212103
510332310303
61040200551
7164211361
oct52614623
923080554
1011213203
116369711
123909157
132427b41
1416bc631
15eb766d
hexab1993

11213203 has 4 divisors (see below), whose sum is σ = 11397088. Its totient is φ = 11029320.

The previous prime is 11213201. The next prime is 11213219. The reversal of 11213203 is 30231211.

11213203 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30231211 = 30798473.

It is a cyclic number.

It is not a de Polignac number, because 11213203 - 21 = 11213201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213201) 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, 91851 + ... + 91972.

It is an arithmetic number, because the mean of its divisors is an integer number (2849272).

Almost surely, 211213203 is an apocalyptic number.

11213203 is a deficient number, since it is larger than the sum of its proper divisors (183885).

11213203 is an equidigital number, since it uses as much as digits as its factorization.

11213203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183884.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11213203 is about 3348.6121005575. The cubic root of 11213203 is about 223.8256708571.

Adding to 11213203 its reverse (30231211), we get a palindrome (41444414).

The spelling of 11213203 in words is "eleven million, two hundred thirteen thousand, two hundred three".

Divisors: 1 61 183823 11213203