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11728153 = 89131777
BaseRepresentation
bin101100101111…
…010100011001
3211001212000001
4230233110121
511000300103
61055213001
7201454603
oct54572431
924055001
1011728153
116690598
123b17161
132578348
1417b4173
15106a01d
hexb2f519

11728153 has 4 divisors (see below), whose sum is σ = 11860020. Its totient is φ = 11596288.

The previous prime is 11728141. The next prime is 11728177. The reversal of 11728153 is 35182711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6215049 + 5513104 = 2493^2 + 2348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11728153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11720153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65800 + ... + 65977.

It is an arithmetic number, because the mean of its divisors is an integer number (2965005).

Almost surely, 211728153 is an apocalyptic number.

It is an amenable number.

11728153 is a deficient number, since it is larger than the sum of its proper divisors (131867).

11728153 is an equidigital number, since it uses as much as digits as its factorization.

11728153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131866.

The product of its digits is 1680, while the sum is 28.

The square root of 11728153 is about 3424.6391050737. The cubic root of 11728153 is about 227.2008094533.

It can be divided in two parts, 11728 and 153, that added together give a square (11881 = 1092).

The spelling of 11728153 in words is "eleven million, seven hundred twenty-eight thousand, one hundred fifty-three".

Divisors: 1 89 131777 11728153