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11262209 = 72229841
BaseRepresentation
bin101010111101…
…100100000001
3210012011211212
4222331210001
510340342314
61041215505
7164504300
oct52754401
923164755
1011262209
1163a2512
123931595
13244423a
1416d2437
15ec6e3e
hexabd901

11262209 has 6 divisors (see below), whose sum is σ = 13100994. Its totient is φ = 9653280.

The previous prime is 11262133. The next prime is 11262227. The reversal of 11262209 is 90226211.

It can be written as a sum of positive squares in only one way, i.e., 11242609 + 19600 = 3353^2 + 140^2 .

It is not a de Polignac number, because 11262209 - 28 = 11261953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11262289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114872 + ... + 114969.

It is an arithmetic number, because the mean of its divisors is an integer number (2183499).

Almost surely, 211262209 is an apocalyptic number.

It is an amenable number.

11262209 is a deficient number, since it is larger than the sum of its proper divisors (1838785).

11262209 is an equidigital number, since it uses as much as digits as its factorization.

11262209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229855 (or 229848 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11262209 is about 3355.9214829909. The cubic root of 11262209 is about 224.1512650167.

The spelling of 11262209 in words is "eleven million, two hundred sixty-two thousand, two hundred nine".

Divisors: 1 7 49 229841 1608887 11262209