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11226309409 = 74347793547
BaseRepresentation
bin10100111010010001…
…11110001100100001
31001222101021121101101
422131020332030201
5140442413400114
65053550434401
7545125025020
oct123510761441
931871247341
1011226309409
114840a60467
122213802a01
13109ba93b43
14786d808b7
1545a893d74
hex29d23e321

11226309409 has 16 divisors (see below), whose sum is σ = 13407787008. Its totient is φ = 9198785232.

The previous prime is 11226309401. The next prime is 11226309421. The reversal of 11226309409 is 90490362211.

It is not a de Polignac number, because 11226309409 - 23 = 11226309401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11226309401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382627 + ... + 410920.

It is an arithmetic number, because the mean of its divisors is an integer number (837986688).

Almost surely, 211226309409 is an apocalyptic number.

It is an amenable number.

11226309409 is a deficient number, since it is larger than the sum of its proper divisors (2181477599).

11226309409 is an equidigital number, since it uses as much as digits as its factorization.

11226309409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793644.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 11226309409 in words is "eleven billion, two hundred twenty-six million, three hundred nine thousand, four hundred nine".

Divisors: 1 7 43 47 301 329 2021 14147 793547 5554829 34122521 37296709 238857647 261076963 1603758487 11226309409