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11081497 = 721391627
BaseRepresentation
bin101010010001…
…011100011001
3202211222221211
4222101130121
510314101442
61033303121
7163122400
oct52213431
922758854
1011081497
116289769
123864aa1
1323acbcb
141686637
15e8d617
hexa91719

11081497 has 12 divisors (see below), whose sum is σ = 12991440. Its totient is φ = 9424296.

The previous prime is 11081471. The next prime is 11081507. The reversal of 11081497 is 79418011.

It is not a de Polignac number, because 11081497 - 211 = 11079449 is a prime.

It is a super-2 number, since 2×110814972 = 245599151522018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11081407) 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 11 ways as a sum of consecutive naturals, for example, 5998 + ... + 7624.

It is an arithmetic number, because the mean of its divisors is an integer number (1082620).

Almost surely, 211081497 is an apocalyptic number.

It is an amenable number.

11081497 is a deficient number, since it is larger than the sum of its proper divisors (1909943).

11081497 is a wasteful number, since it uses less digits than its factorization.

11081497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 11081497 is about 3328.8882528556. Note that the first 3 decimals coincide. The cubic root of 11081497 is about 222.9458936882.

The spelling of 11081497 in words is "eleven million, eighty-one thousand, four hundred ninety-seven".

Divisors: 1 7 49 139 973 1627 6811 11389 79723 226153 1583071 11081497