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11605201 = 57720113
BaseRepresentation
bin101100010001…
…010011010001
3210211121100021
4230101103101
510432331301
61052423441
7200433256
oct54212321
923747307
1011605201
116607183
123a77b81
1325343aa
14178142d
1510438a1
hexb114d1

11605201 has 4 divisors (see below), whose sum is σ = 11625892. Its totient is φ = 11584512.

The previous prime is 11605199. The next prime is 11605207. The reversal of 11605201 is 10250611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10250611 = 71464373.

It can be written as a sum of positive squares in 2 ways, for example, as 6765201 + 4840000 = 2601^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 11605201 - 21 = 11605199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11605207) 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, 9480 + ... + 10633.

It is an arithmetic number, because the mean of its divisors is an integer number (2906473).

Almost surely, 211605201 is an apocalyptic number.

It is an amenable number.

11605201 is a deficient number, since it is larger than the sum of its proper divisors (20691).

11605201 is an equidigital number, since it uses as much as digits as its factorization.

11605201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20690.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 11605201 is about 3406.6407207101. The cubic root of 11605201 is about 226.4040660805.

Adding to 11605201 its reverse (10250611), we get a palindrome (21855812).

The spelling of 11605201 in words is "eleven million, six hundred five thousand, two hundred one".

Divisors: 1 577 20113 11605201