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10665227 = 73146099
BaseRepresentation
bin101000101011…
…110100001011
3202001211221102
4220223310023
510212241402
61020332015
7156436646
oct50536413
922054842
1010665227
116024a41
1236a400b
1322955b1
1415b8a5d
15e0a102
hexa2bd0b

10665227 has 4 divisors (see below), whose sum is σ = 10811400. Its totient is φ = 10519056.

The previous prime is 10665199. The next prime is 10665229. The reversal of 10665227 is 72256601.

10665227 is digitally balanced in base 2, because in such base 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: 72256601 = 193802979.

It is a cyclic number.

It is not a de Polignac number, because 10665227 - 26 = 10665163 is a prime.

It is a super-2 number, since 2×106652272 = 227494133923058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10665227.

It is not an unprimeable number, because it can be changed into a prime (10665229) 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, 72977 + ... + 73122.

It is an arithmetic number, because the mean of its divisors is an integer number (2702850).

Almost surely, 210665227 is an apocalyptic number.

10665227 is a deficient number, since it is larger than the sum of its proper divisors (146173).

10665227 is an equidigital number, since it uses as much as digits as its factorization.

10665227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146172.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 10665227 is about 3265.7659132277. The cubic root of 10665227 is about 220.1185793253.

The spelling of 10665227 in words is "ten million, six hundred sixty-five thousand, two hundred twenty-seven".

Divisors: 1 73 146099 10665227