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11107209 = 310933967
BaseRepresentation
bin101010010111…
…101110001001
3202220022020010
4222113232021
510320412314
61034022133
7163260351
oct52275611
922808203
1011107209
1162a7013
123877949
1323bb819
141691b61
15e96059
hexa97b89

11107209 has 8 divisors (see below), whose sum is σ = 14945920. Its totient is φ = 7336656.

The previous prime is 11107189. The next prime is 11107219. The reversal of 11107209 is 90270111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11107209 - 223 = 2718601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11107219) 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 7 ways as a sum of consecutive naturals, for example, 16657 + ... + 17310.

It is an arithmetic number, because the mean of its divisors is an integer number (1868240).

Almost surely, 211107209 is an apocalyptic number.

It is an amenable number.

11107209 is a deficient number, since it is larger than the sum of its proper divisors (3838711).

11107209 is a wasteful number, since it uses less digits than its factorization.

11107209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34079.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 11107209 is about 3332.7479652683. The cubic root of 11107209 is about 223.1181916180.

The spelling of 11107209 in words is "eleven million, one hundred seven thousand, two hundred nine".

Divisors: 1 3 109 327 33967 101901 3702403 11107209