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11302661 = 54720663
BaseRepresentation
bin101011000111…
…011100000101
3210021020100002
4223013130011
510343141121
61042131045
7165033236
oct53073405
923236302
1011302661
11641a947
123950a85
132459786
14170308d
15ed3e0b
hexac7705

11302661 has 4 divisors (see below), whose sum is σ = 11323872. Its totient is φ = 11281452.

The previous prime is 11302639. The next prime is 11302667. The reversal of 11302661 is 16620311.

11302661 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16620311 = 46335897.

It is a cyclic number.

It is not a de Polignac number, because 11302661 - 214 = 11286277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302667) 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, 9785 + ... + 10878.

It is an arithmetic number, because the mean of its divisors is an integer number (2830968).

Almost surely, 211302661 is an apocalyptic number.

It is an amenable number.

11302661 is a deficient number, since it is larger than the sum of its proper divisors (21211).

11302661 is an equidigital number, since it uses as much as digits as its factorization.

11302661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 11302661 is about 3361.9430393747. The cubic root of 11302661 is about 224.4193158174.

Adding to 11302661 its reverse (16620311), we get a palindrome (27922972).

The spelling of 11302661 in words is "eleven million, three hundred two thousand, six hundred sixty-one".

Divisors: 1 547 20663 11302661